Memoir of the Life of Major-General Colby ...: Together with a Sketch of the Origin and Progress of the Ordnance Survey of Great Britain and Ireland ...Seeley, Jackson & Halliday, 1869 - 316 pages |
From inside the book
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Page 24
... original steel chain made for the Royal Society , and before described , in this , that instead of consisting of 100 links of 1 foot , they were composed of 40 links only , each link being a parallelopipedon , 2 feet long , and half an ...
... original steel chain made for the Royal Society , and before described , in this , that instead of consisting of 100 links of 1 foot , they were composed of 40 links only , each link being a parallelopipedon , 2 feet long , and half an ...
Page 59
... original meridional arcs one extending from Hensbarrow , in Cornwall , to Ben Hutisch , in Sutherlandshire , and another from the Hill of Forth , in Wexford , through the south end station of the Lough Foyle base to Monach in the Isle ...
... original meridional arcs one extending from Hensbarrow , in Cornwall , to Ben Hutisch , in Sutherlandshire , and another from the Hill of Forth , in Wexford , through the south end station of the Lough Foyle base to Monach in the Isle ...
Page 100
... original state , were communicated to the British observers , although a copy of the sector observations was transmitted to the French . In June , 1819 , Schumacher writes thus to Baron Zach on the subject : 66 On my return from London ...
... original state , were communicated to the British observers , although a copy of the sector observations was transmitted to the French . In June , 1819 , Schumacher writes thus to Baron Zach on the subject : 66 On my return from London ...
Page 101
... original observations have , as is customary in such cases , been published . Until then , no satisfactory judgment can be formed of this important work , on which the attention of all the learned men of the world has been fixed for ...
... original observations have , as is customary in such cases , been published . Until then , no satisfactory judgment can be formed of this important work , on which the attention of all the learned men of the world has been fixed for ...
Page 102
... original observations to you , as it was agreed . It is certainly against the most common laws of honour to publish what you have of a friend for private communication ; however , the thing is done , and MM . Biot and Arago are now in a ...
... original observations to you , as it was agreed . It is certainly against the most common laws of honour to publish what you have of a friend for private communication ; however , the thing is done , and MM . Biot and Arago are now in a ...
Other editions - View all
Memoir of the Life of Major-General Colby ... Together with a Sketch of the ... Joseph Ellison Portlock No preview available - 2015 |
Memoir of the Life of Major-General Colby ... Together With a Sketch of the ... Joseph Ellison Portlock No preview available - 2018 |
Memoir of the Life of Major-General Colby ... Together with a Sketch of the ... Joseph Ellison Portlock No preview available - 2013 |
Common terms and phrases
accuracy acres adopted altitudes angles appear Arago Arbury Hill assist Astronomer Royal astronomers Balta Baron Zach baronial base Biot British survey calculation Captain Colby Captain Kater Captain Mudge Colby's Colonel Colby Colonel Mudge commenced comparison connected Dawson deduced degree determined difference of longitude difficulty direction distance Dunkirk Dunnose Engineers England English engraving error feet French geodesical geodesists Greenwich heliostat hill inches instrument Ireland Irish survey island labours land Larcom latitude length Lieut Lieut.-Colonel Lieutenant Drummond Lincolnshire Lough Foyle Major Colby measured Memoir ment meridian microscopes miles military mountain names necessary object observations observatories obtained officers operations Ordnance Survey party pendulum person Petty proceeded published purpose Ramsden repeating circle respect Richard Mudge rods scientific Scotland sector Severndroog Castle Shetland Slieve Donard stations steel chain superintendent surveyors telescope theodolite tion toises townland triangulation trigonometrical Unst whilst William Mudge zenith
Popular passages
Page 316 - He was a fellow of the Royal Societies of London and Edinburgh, and a member of some other learned bodies.
Page 169 - J or ^, in value, as we conceive, to that which is profitable and good; 4th, the names of the proprietor or proprietors who have lands within the said towne soe called or distinguished, or a note of the said lands itts being in controversy ; 5th, the quantity of acres in the said...
Page 174 - ... Lands in Ireland." And likewise another ordinance of the thirteenth of November, one thousand six hundred forty and seven. Upon which several Acts and ordinances great sums of money have been subscribed and paid in to the respective treasurers therein named, which by the said Acts and ordinances are to be satisfied by several proportions of the lands of the rebels aforesaid. And whereas, also, several great sums of money are grown due and in arrear...
Page 172 - ... but it remained for Dr. Petty, to originate the idea of connecting the separate operations, into a general survey of the three provinces which were not comprised in the Strafford Survey. His great step was making territorial and natural boundaries the main objects, instead of estate boundaries alone ; because the former were permanent and enduring, the latter in their nature fluctuating, and destined to change by the very purpose for which the survey itself was made. The insertion which he enjoined...
Page 202 - Among the valuable records in the custody of Sir William Betham, there is a memorandum of an order from the King (Charles II.), stating that the " barbarous and uncouth names of places" in Ireland, much retard the reformation of the country, and directing the Lord Lieutenant and Council to change such names into others more suitable to the English tongue, annexing the ancient names in every grant so altered. This appears to have been subsequently embodied in the Act of Explanation, of which it forms...
Page 48 - The anomalies which have occurred in the measures of degrees, and of which the appearances seem to increase in proportion as greater pains are taken to avoid inaccuracy, have naturally drawn the attention of mathematicians ; and the question, what part of them is to be ascribed to error, and what to irregularities in the structure of the globe, has come, of course, to be considered.
Page 142 - Town, at a distance of twenty-four miles ; and Captain Colby having, according to his usual practice, ascertained the general direction by means of a pocket compass and map, the whole party set off, as...
Page 178 - ... say that there is not one of these precautions which was not found indispensable on the similar work of the Ordnance Survey, and it is even more remarkable that clear directions on the same points were laid down also in the similar instructions prepared by the able director of that work, Colonel, now General Colby, who, it is needless to say, had never seen or heard of the archives and documents we are now consulting and printing. Many of the instructions of Dr. Petty and Colonel Colby might...
Page 19 - Accurate surveys of a country are universally admitted to be works of great public utility, as affording the surest foundation for almost every kind of internal improvement in time of peace, and the best means of forming judicious plans of defence against the invasions of an enemy in time of war ; in which last circumstance, their importance usually becomes the most apparent.
Page 174 - Satisfaction of the Adventurers for Lands in Ireland, and of the Arrears due to the Soldiery there, and of other publique Debts1.