

r the National 



of a complete 



Diig, they will form a part 



be decided on; and as the committe7 oVuie' House of Commons, of 

 which Lord Bury was chairman, which was appointed last year to report 

 upon ' the expediency of extending the Cadastral Survey to those por- 

 tions of the United Kingdom which have been surveyed'upon the scale 

 ot one nich to a mile only," have reported in t^ivor of it, the cost of the 

 surveys made for the defenses will go to diminish the cost of the Cadas- 



In the north of England, Yorkshire and Lancashire have been pub- 

 Jished on the 6-inch scale; Westmoreland and Durham on the 25-inch 

 scale; and the survey is in progress in North umerland and Cumberland. 

 A large portion of each of these counties lias already been publisbeJ, 

 and they will be finished this year. The last sheets of the 1-inch map of 



f.)re expect that this map, which was begun in ll8i, Will now' be soon 

 hn.shed._ Li Scotland all the southern counties have been published either 



I course of publication ; and the survey li 



hng, and Dumbarton a 



ceeding in Perthshire, Kincardineshire; and L....„.... .„. . . 



of Scotland IS also in course of publication. 



ihe plans of the eight northern counties of Ireland have been revised 

 ami made perfect in every detail, like the plans of the southern counties, 

 iiiis perfect revision was rendered necessary to enable the Government 

 valuators to mark upon the plans every property and tenement: and this 

 iias now been done throughout the whole of Ireland. The Ordnance 

 plans are now invariably used for the transfer of land under the Landed 

 Instates Court, the cost of preparing the plans for the court being charged 

 to the carriage of the sale of the property ; and tlie same arrangement 

 will doubtless be mtroduced here as soon as some progress is made in the 

 Cadastral Survey. ^ ^ 



Sir Henry James has this year published six sheets of the Marginal 

 Lines for the sheets of a map of the whole world, on the scale of 2 inches 

 to a mile ; the object in view being to have a map constructed on the 

 argest scale required for geographical purposes, the sheets of which can 

 be put together to form a connected map of any part of the world, how- 

 ever large or however small ; and to avoid the confusion arising when we 

 attempt to put together maps of different countries, as they are now con- 

 structed on different scales and on different projections. 

 _ Ihis js a great undertaking, and one which "will require the coopera- 

 tion of a great number of people and some years to accomplish ; but the 

 advantages to be derived from 



country as ours should undert 



In a discussion upon the relative merits of several projections for large 

 CrTr . ou-f^""^*';' "'■■^^^^'^ ^^''<^^^ bas been published in the last num- 

 uer ot tiie Philosophical Magazine.' it has been demonstrated, that, assu- 

 ming theerrors wl.ich all prlectij^l ^ 1 spLrS sui^^^^^^^ a plane 



