duction in wrong order. According to the second method, which resembles that commonly employed in estimating the value of answers to examination papers, a greater value is assigned to letters according as they correspond more exactly to what was written on the card. A letter which was given in a wrong position or without any hint as to its position had the value 1 attached to it. When a certain imperfect knowledge of its position was present, as when it was located in the right line or in the right order in a group of letters whose correct position was unknown, the value 2 was given. Each letter counted 3 when everything was correct. Letters wrongly inserted were disregarded. From an analysis of the results given by the first method it appeared that the number of insertions does not vary very much, and only in a few cases has an important influence on the results. All the results of over five hundred experiments made with nine observers have been analysed according to the two methods, and the results agree except in a few cases. The general conclusion is that the memory is worst when the reagent performs the simple sum in addition (1); it is better when the distraction is caused by exercise of the vocal organ (2); that caused by movement of the forefinger (3) does not make the recollection much worse than it is when the observer is not distracted at all (4). This statement holds good with only a few exceptions for every reagent, and is confirmed by the subjective observations given in reply to the questions which were frequently asked. The average of the results given by the nine persons who assisted in the experiments is as follows: the upper line gives the values according to the first method, the lower the values according to the second method of calculation (1) 9.7 12.9 (2) 8.7 16.3 (3) 7.95 18.5 (4) 7.4 21.2 An analysis of the errors shows that the curve of errors of omission follows closely that of the total number of errors: the other two kinds of error are much less numerous, and do not show any very important variation. A detailed analysis of the results, together with a discussion of their meaning and value, will be given in a future number of Mind. 7. On Typhoid Bacilli in Water. By Dr. L. OLIVIER. WEDNESDAY, AUGUST 15. The following Papers and Report were read:- 1. On some Physiological Effects of the Passage of Rapidly-alternating Currents of great Intensity through Nerve. By Professor OLIVER LODGE, F.R.S., and Professor F. GOTCH, F.R.S. 2. On a New Spring Kymograph and Polyrheotome. By Professor T. W. W. ENGELMANN. 3. On the Production with the Capillary Electrometer of Photographic Records of Currents produced by Speaking into a Telephone. By G. J. BURCH. 4. Report of the Committee on the Structure and Function of the Mammalian Heart.-See Reports, p. 464. INDEX. References to reports and papers printed in extenso are given in Italics. An Asterisk* indicates that the title only of the communication is given. The markt indicates the same, but a reference is given to the Journal or Newspaper where the paper is published in extenso. OBJ BJECTS and rules of the Association, xxix. Places and times of meeting, with names of officers, from commencement, xxxix. List of former Presidents and Secretaries of Sections, xlix. List of evening lectures, lxvii. Lectures to the Operative Classes, lxx. Officers of Sections present at Oxford, lxxi. Officers and Council for 1894-95, lxxiii. Treasurer's account, lxxiv. Table showing the attendance and re ceipts at the annual meetings, lxxvi. Report of the Council to the General Committee at Oxford, lxxviii. Committees appointed by the General Committee at Oxford: (1) receiving grants of money, lxxxi.; (2) not receiving grants of money, lxxxvi. Papers ordered to be printed in extenso, lxxxix. Resolutions relating to the constitution and titles of sections, xc. Resolutions referred to the Council for consideration, and action if desirable, ib. Synopsis of grants of money appropriated to scientific purposes, xci. Places of meeting in 1895 and 1896, xcii. General statement of sums which have been paid on account of grants for scientific purposes, xciii. General meetings, cviii. Address by the President, Lord Salisbury, K.G., D.C.L., F.R.S., Chancellor of the University of Oxford, 3. ABEL (Sir F.) on the best method of estab lishing an international standard for the analysis of iron and steel, 237. Abelian system of differential equations, a method of determining all the rational and integral algebraic integrals of the, by W. R. Westropp Roberts, 557. ABERCROMBY (Hon. R.) on meteorological observations on Ben Nevis, 108. ABNEY (Capt. W. de W.) on the best methods of recording the direct intensity of solar radiation, 106. on the action of light upon dyed colours, 238. on wave-length tables of the spectra of the elements and compounds, 248. ADAMS (Prof. W. G.) on practical electrical standards, 117. Addition theorem, Prof. Mittag-Leffler on the, 561. Aerotonometer and gas-burette, Prof. L. Fredericq on an, 807. Africa, tropical, the climatological and hydrographical conditions of, third report on, 348. After-damp, Dr. J. Shaw Lyttle on the effects of, 817. Agriculture, co-operation in, Harold Moore on, 736. Air, experiments to find if subtraction of water from, electrifies it, Lord Kelvin," M. Maclean, and A. Galt on, 554. a new gaseous constituent of, Lord Rayleigh and Prof. W. Ramsay on, 614. Alcyonium, the development of, Dr. S. J. Hickson on, 345. ALLEN (J. Romilly) on an ethnographical survey of the United Kingdom, 419. Alps, iodine value of sunlight in the, Dr. S. Rideal on the, 612. *Alternate currents, Prof. S. P. Thompson on some advantages of, 756. Amentiferæ, phylogenetic position of the Chalazogamic, Miss M. Benson on the, 687. America, a new light on the discovery of, by H. Y. Oldham, 715. Amides, the constitution of the acid, Dr. J. B. Cohen on, 625. Amphioxus, the species of, J. W. Kirkaldy on, 685. *Amphisile, the vertebræ of the, W. E. Collinge on, 683. Anallagmatic displacements of the regular bodies in n-dimensional space, the order of the groups related to the, Prof. P. H. Schoute on, 562. Analysis of iron and steel, sixth report on the best method of establishing an international standard for the, 237. Ancient and prehistoric remains of Glamorganshire, second report on the, 418. ANDERSON (Dr. Joseph) on an ethnographical survey of the United Kingdom, 419. (Dr. Tempest) on the collection, preservation, and systematic registration of photographs of geological interest in the United Kingdom, 27 k. on the correction of optical instruments for individual eyes, 586. on certain volcanic subsidences in the north of Iceland, 650. Aniline, the specific heat of, the influence of temperature upon, E. H. Griffiths on, 568. Animal life, the homes and migrations of the earliest forms of, as indicated by recent researches, Dr. H. Hicks on, 657. Antarctic geographical, meteorological, and natural history observations, report of the Committee for making, 358. Anthropological Section, Address by Sir W. H. Flower to the, 762. Anthropometric laboratory at the Nottingham meeting, report on the work of the, 444. work in schools, report on, 439. Appendix: I. Circular sent to Schools, 440. II. Suggestions for Anthropometric Observations in Schools, 441. *Antiquity of man in Belgium, Prof. M. Lohest on the, 784. APPLEYARD (G.) and Dr. J. B. COHEN, popular method for the estimation of carbon dioxide in the air, 619. Archæopteryx, the wing of, viewed in the light of that of some modern birds, W. P. Pycraft on, 693. *Arctic expedition, the Jackson-Harmsworth, A. Montefiore on the, 717. +Armenia, Russian, Dr. A. Markoff on, 711. ARMSTRONG (Prof. H. E.) on the inrestigation of isomeric napthalene derivatives, 268. on the teaching of science in elementary schools, 359. Aromatic diazo-compounds, the formation of indazol derivatives from, Prof. E. Noelting on, 622. series, ortho-dinitroso derivatives of the, Prof. E. Noelting on, 620. Arrhenius' law of dissociation, the determination of, Dr. Meyer Wildermann on, 616. †Arsenic, Schuller's yellow modification of, Prof. H. McLeod on, 615 Astronomical theory of ice ages and general ages, the inadequacy of the, E. P. Culverwell on, 660. *ATKINSON (Edward) on prices, wages, and the standard of value, 730. (R. W.) on the prehistoric and ancient remains of Glamorganshire, 418. Atmosphere of a rotating planet, the law of molecular distribution in the, G. H. Bryan on, 100. Atomic weight of carbon, Prof. J. A. Wanklyn on the, 619. AYRTON (Prof. W. E.) on practical electrical standards, 117. Babinet's principle and Fresnel's diffrac tion theory, a lecture-room experiment to illustrate, by Prof. A. Cornu, 480. *Bacillus, a Thames, Prof. Marshall Ward on, 698 Bacterium in milk, the chemical action of a new, A. Bernstein on, 608. BAILDON (Miss F.) on a visit to British New Guinea, 716. (H. Bellyse) on some of the natives of British New Guinea, 788. BAILY (F. G.) on hysteresis in iron and steel in a rotating magnetic field, 576. BAKER (H. Brereton) on the electrification of molecules and chemical change, 493. BALFOUR (Henry) on the bow as a musical instrument, 778. (Prof. I. Bayley), Address to the Biological Section by, 667. BALL (Sir Robert) on a general theorem in dynamics, 561. - (Dr. V.) on the collection, preservation, and systematic registration of photographs of geological interest in the United Kingdom, 274. Bank of England, fifty years' accounts of the, A. W. Flux on, 734. Banks of small channels in tidal estuaries, the shape of the, Prof. H. Hennessy on, 664. BARLOW (W.), a new explanation of the wave-movements of a stretched string, 593. BARRINGTON (R. M.) on making a digest of the observations on the migration of birds, 348. *Barrow, a long, near Rushmore, exploration of, by General Pitt-Rivers, 784. ,, the skeletons from, Dr. J. G. Garson on, 784. BASTABLE (Prof. C. F.), Address to the Section of Economic Science and Statistics, 719. Bathymetrical survey of the English lakes, Dr. H. R. Mill on a, 713. of the French lakes, E. Delebecque on the, 712. BAUERMAN (H.) on the proximate chemical constituents of coal, 246. — on the volcanic phenomena of Vesuvius and its neighbourhood, 315. *BAYLISS (W. M.) on some vasodilator reflexes, 811. and Dr. STARLING on the innervation of the portal vein, 811. BEARE (Prof. T. Hudson) on methods of determining the dryness of steam, 392. Beat-tones, the production of, from two vibrating bodies whose frequencies are so high as to be separately inaudible, A. M. Mayer on, 573. BEDDOE (Dr. John) on an ethnographical survey of the United Kingdom, 419. on complexional differences between natives of Ireland with indigenous and exotic surnames respectively, 775. BEDFORD (J. E.) on the collection, preserration, and systematic registration of photographs of geological interest in the United Kingdom, 274. BEDSON (Prof. P. P.) on the proximate chemical constituents of coal, 246. *Belgium, the antiquity of man in, Prof. Max Lohest on, 784. the present state of prehistoric studies in, Count Goblet d'Alviella on, 783. BELL (A. Montgomerie) on the Pleistocene gravel at Wolvercote, near Oxford, 663. (Dugald) on the character of the high-level shell-bearing deposits at Clava, Chapelhall, and other localities, 307. (Sir I. Lowthian) on the proximate chemical constituents of coal, 246. (J.) on the prehistoric and ancient remains of Glamorganshire, 418 Ben Nevis, meteorological observations on, report on, 108. *BENEDEN (Prof. E. van) on the relations of protoplasm, 684. on the origin and morphological signification of the notochord, 684. BENHAM (Dr. W. B.) on the blood of Magelona, 696. -, suggestions for a new classification of the Polychæta, 696. BENSON (Miss M.) on the phylogenetic position of the Chalazogamic Amentiferæ, 687. BENT (J. Theodore) on the exploration of Hadramout, in Southern Arabia, 354. on the natives of the Hadramont 786. BERNSTEIN (A.), the chemical action of a new bacterium in milk, 608. Bessemer flame spectra, Prof. W. N. Hartley on, 610. *Bhutan and the Himalayas east of Darjiling, Col. H. Godwin-Austen on, 717. Bibliography of solution, eighth (interim) report on the, 246. of spectroscopy, sixth report on the, 161. Bicycles, spring spokes for, Prof. J. D. Everett on, 760. Bimetallism, the mechanics of, Prof. Irving Fisher on, 729. Biological Association at Plymouth, the Marine, report on investigations made at the laboratory of, 345. On the development of Alcyonium, by On the later stages in the development of 345. Section, Address by Prof. I. Bayley Balfour to the, 667. Birds' eggs, wild, the legislative protection of, report on, 347. Birds, the migration of, interim report of the Committee for making a digest of the observations on the, 348. the wing of Archæopteryx viewed in the light of that of some modern, W. P. Pycraft on, 693. BIRTWHISTLE (A.) on the Calf Hole Cave, 272. Black death in Italy, the economic results of the, M. Kovalevsky on, 733. BLAKE (Rev. J. F.) on sporadic glaciation in the Harlech Mountains, 659. on the mechanics of an ice-sheet, 661. BLANFORD (Dr. W. T.) on the present state of our knowledge of the zoology of the Sandwich Islands, 343. Blastocyst of the mammalia, the dider mic, Prof. A. A. W. Hubrecht on, 681. Blood of the Magelona, Dr. W. B. Benham on the, 696. BLOXAM (G. W.) on the exploration of Hadramout, in Southern Arabia, 354. on an ethnographical survey of the United Kingdom, 419. on the physical and mental deviations from the normal among children in schools, 434. on anthropometric work in schools, 439. on the work of the anthropometric laboratory at the Nottingham meeting, 444. on the North-Western tribes of the Dominion of Canada, 453. †BLUNDELL (H. W.) on a journey in the Libyan desert, 716. BOAS (Dr. F.) on the Indian tribes of the Lower Fraser River, 454. Body and mind, the relations between, as expressed in early languages, customs, and myths, Rev. G. Hartwell Jones on, 779. BOLTZMANN (Prof. L.) on the application of the determinantal relation to the kinetic theory of polyatomic gases, 102. on Maxwell's method of deriving the equations of hydrodynamics from the kinetic theory of gases, 579. BONNEY (Prof. T. G.) on the work of the Corresponding Societies Committee, 19. on the collection, preservation, and registration of photographs of geological interest in the United Kingdom, 274. a comparison of the pebbles in the Trias of Budleigh Salterton and of Cannock Chase, 655. on the probable temperature of the glacial epoch, 660. Borneo, the alleged presence of negritoes in, H. Ling Roth on, 780. *Botanical diagrams exhibited by Prof. Kny, 689; by Prof. L. Errera, 696. Botany and zoology of the West India Islands, serenth report on the present state of our knowledge of the, 344. BOTTOMLEY (Dr. J. T.) on practical electrical standards, 117. BOURNE (G. C.) on investigations made at the Marine Biological Association laboratory at Plymouth, 345. (Stephen) on the teaching of science in elementary schools, 359. Bow as a musical instrument, H. Balfour on the, 778. BOWER (Prof. F. O.) on sterilization and a theory of the strobilus, 695. BRABROOK (E. W.) on an ethnographical survey of the United Kingdom, 419. on the physical and mental deviations from the normal among children in schools, 434. on anthropometric work in schools, 439. BRAGGE (Robert) and Henry LEA on a special chronograph, 757. *Brain, the valuation of proportional dimensions in the description of the, Prof. L. Manouvrier on, 788. of a young Fuegian, Prof. L. Manouvrier on the, 787. BRAMWELL (Sir F. J.) on earth tremors, 145. t on methods of determining the dryness of steam in boiler trials, 392. some reminiscences of steam locomotion on common roads, 748. *British camps and a long barrow near Rushmore, exploration of, by Gen. Pitt-Rivers, 784. Isles, a new representation of the vertical relief of the, B. V. Darbishire on, 718. BROWN (Prof. A. Crum) on meteorological observations on Ben Nevis, 108. (M. Walton) on earth tremors, 145. BROWNE (Montagu) on some vertebrate remains from the Rhætic strata of Britain, 657. *BRÜHL (Prof. W. J.) investigations on tautomerism, 620. BRYAN (G. H.) report on the present state of our knowledge of thermo-dynamics. Part II.: the laws of distribution of energy and their limitations, 64. BUCHAN (Dr. A.) on meteorological observations on Ben Nevis, 108. BUCHANAN (J. Y.) on making geographical, meteorological, and natural history observations in South Georgia or other Antarctic island, 358. t ་ researches by the Prince of Monaco in the North Atlantic and Mediterranean during the summer of 1894, 717. BUCKLAND (Miss A. W.) on the significance of objects with holes, 790. BULLEID (A.) on the lake village at Glastonbury, 431. *BURCH (G. J.) on the production with the capillary electrometer of photographic records of currents produced by speaking with a telephone, 818. BURKE (J.) on the luminosity observed when a vacuum bulb is broken, 585. BURSTALL (H. F. W.) on the temperature entropy diagrams, 758. BUTE (Lord) on the prehistoric and ancient remains of Glamorganshire, 418. Calf Hole Care, near Skipton, report on the exploration of the, 272. Calibration of engineering laboratory instruments, Prof. D. S. Capper on the, 759. CAMPBELL (Prof. D. H.) on the origin |