230 



I[l'\|M)r,\i;Ti:i!S OF SIT.VFY DFJ'ARTME.XT. 



were produced by Mr. John Walker in 1827. In 1864, with a view 

 to expedite the work, a proposal was made by the Surveyor-General 

 that the Atlas should be brought out in quarter sheets, and this was 

 agreed to by Mr. Walker. The convenience of this mode of publi- 

 cation has been universally recognised since and the practice 

 uniformly adhered to, the old full sheets being now discontinued. 

 In 1868 the engraving of the Indian Atlas was formally transferred 

 to Calcutta, and a small but efficient staff of experienced engravers 

 under Mr. C. Coard, was engaged by Colonel (now Sir Henry) 

 Thuillier, the Surveyor-General. These were reinforced in 1872 by 

 fresh hands selected by Colonel J. T. Walker, who at the same 

 time made arrangements for the completion of the engraving of 

 all the plates remaining in England. Since 1876 the engraving 

 has been carried on entirely in Calcutta at the headquarters of the 

 Surveyor- General, within easy reach of the compilers and surveyors, 

 to whom reference is made in cases of doubt or difficulty. 



It must not be supposed, however, that the Indian Atlas, though 

 commenced as far back as 1825, is near completion.* This arises 



* The following table, taken from Captain George M. Wheeler's (U.S. Army) 

 admirable report upon the Third International Geographical Congress and Exhibition 

 at Venice in 1881, will serve to show how far the European countries had advanced 

 in 1885 towards the completion of their general topographic maps: — 



Country. 



Area in 

 Square Miles. 



Scales. 



Number of 

 Sheets when 

 complete. 



Number 

 completed. 



How 



reproduced.! 



Gnat Britain 



123,165 



1: 63,3G0 



696 



412 



C. 



Germany 



208,368 



1:100,000 



674 



417 



C. 



Austro-llungrirv 



241,553 



1: 75,000 



720 



578 



Hlg. 



France 



205,970 



1: 50,000 



1,092 



20J 



Z. 



„ Algeria 



16G,023 



1: 50,000 



327 



23 



z. 



Switzerland 



15,978 



1:100,000 



25 



25 



c. 



Holland 



13,740 



1: 50,000 



62 



62 



s. 



Spain 



193,286 



1: 50,000 



1,080 



29 



s. 



Italy - 



111,405 



1:100,000 



277 



109 



Ph. z. 



Sweden 



173,967 



1:100,000 



232 



64 



C. 



Russia 



2,129,201 



1:126,000 



972§ 



505 



c. 



Belgium 



11,37:. 



1: 40,000 



72 



72 



c. 



Denmark (Jutland') -\ 

 (Islands) -/ 



14,788 -[ 



1: 40,000 

 1: SO,000 



131 

 29 



69 



29 

 (in quarter 

 sheets). 



c. 

 c. 



Norway 



125,646 



1:100,000 



54 



43 



C. and S. 



Portugal 



34,418 



1:100,000 



37 



22 



S. 



t C. Copper engraving; S. Stone engravin 

 and Photo-lithography ; Hlg. Heliogravure. 



J This map is intended to supersede the fitat Major 

 which was commenced n 1819 and finished in 1881. 



§ Approximate. 



Z. Zincography; Ph. z. and Ph. 1. Photo-zincography 

 p on the scale of 1 : 80,000 in 273 sheets, 



