Report of the Annual MeetingJ. Murray., 1845 |
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acid anemometer angle animal appears arrangement atmosphere barometer birds boiler British Association calcaneum carbonate of lime carbonic acid catalogue Catherine's Point channel character Chloride colour column Committee considerable constellations contains crâne crest crète curves depth described diameter Diprotodon direction diurnal Dublin electrometers equal exhibited exist experiments fauna feet fluid fossil furnace gaseous genera genus gneiss heat height hour inches iron island John Herschel length lines Longstone magnetic marsupial mean membrane Meteorological miles Monte Bolca motion moulted nacre nature nearly observations Observatory obtained ornithology palpus papillæ particles peculiar phænomena phænomenon Plate poissons portion posterior potash present pressure produced Prof Professor proportion quantity remarkable Report Scilly shell Sheppey Silurian slate species specimens spiders stars structure sulphate surface temperature tion Toronto vapour velocity vertical wave whole wind Zoology
Popular passages
Page 181 - Geographical and Comparative List of the Birds of Europe and North America.
Page 314 - I have now ceased to exercise any control over the phaenomenon, but as I attentively watch the processes I have set a-going, I observe each successive portion of water in the act of being displaced by one moving mass of water, and in the act of displacing its successor. As the water particles crowd upon one another in the act of going out of their old places into the new, the crowd forms a temporary heap visible on the surface of the fluid, and as each successive mass is displacing its successor,...
Page xxx - ... required to present to each following meeting of the Association a Report of the progress which has been made ; with a statement of the sums which have been expended, and the balance which remains disposable on each grant. Grants of pecuniary aid for scientific purposes from the funds of the Association expire at the ensuing meeting, unless it shall appear by a Report that the Recommendations have been acted on, or a continuation of them be ordered by the General Committee. In each Committee,...
Page 388 - The reflexion of sensorial into motor impressions, which takes place in the sensorium commune, is not performed according to mere physical laws, where the angle of reflexion is equal to the angle of incidence...
Page 326 - ... the velocity which a heavy body would acquire in falling through a space equal to half the depth of the fluid (reckoning from the ridge of the wave...
Page 387 - Inventéïe). a 1 a 2 a 3 a 4 a 5 a 6 a 7 a 8 a 9 a 10...
Page 317 - A gentle zephyr flitting along the surface from point " to point, may be observed to destroy the perfection of the " mirror for a moment, and on departing, the surface remains " polished as before ; if the air have a velocity of about a mile an " hour, the surface of the water becomes less capable of distinct " reflexion, and on observing it in such a condition, it is to be "noticed that the diminution of this reflecting power is owing " to the presence of those minute corrugations of the superficial...
Page 57 - To give a stronger impulse and a more systematic direction to scientific inquiry; to promote the intercourse of those who cultivate science in different parts of the British Empire with one another, and with foreign philosophers ; to obtain a more general attention to the objects of science, and a removal of any disadvantages of a public kind which impede its progress.
Page 12 - Paper proper for producing an amphitype picture may be prepared either with the ferrotartrate or the ferro-citrate of the protoxide or the peroxide of mercury, or of the protoxide of lead, by using creams of these salts, or by successive applications of the nitrates of the respective oxides, singly or in mixture, to the paper, alternating with solutions of the ammonio-tartrate or ammonio-citrate of iron*, the latter solutions being last applied, and in more or less excess.
Page 13 - ... and allowed to remain till the picture (if anywhere visible) is entirely destroyed, or if faded, till it is judged sufficient from previous experience ; a term which is often marked by the appearance of a feeble positive picture, of a bright yellow hue, on the pale yellow ground of the paper. A long time (several weeks) is often required for this, but heat accelerates the action, and it is often complete in a few hours. In this state the picture is to be very ^thoroughly rinsed and soaked in...