TOPOGRAPHICAL MAPS OF THE STATE. 247 



There is a question in relation to the proper boundary line between the Atkinson and 

 Gilmanton Academy and Carlisle grants. The act defining the former fixes the north- 

 erly boundary on the line of forty-five degrees north latitude. 



Carlisle's grant is defined thus : Commencing at east bank of Connecticut river at 

 point of intersection with the north line of the College grant (Clarksville) ; "thence 

 extending up said river, on the east side thereof as it winds and turns, to the distance 

 of twelve miles in a straight line from the place of beginning ; thence in a line as 

 nearly as possible at right angles with the main course of the aforesaid line on said 

 river to the line of the state of Maine ; thence southerly by the line of the state of 

 Maine to a point distant twelve miles in a right angular line from the line last aforesaid ; 

 thence in a line as nearly as possible at right angles with the main course of Connecticut 

 river aforesaid, and parallel with the second line above described, to the Connecticut 

 river at the place of beginning. 1 ' 



If these acts are to be interpreted strictly, there is an irregular piece of land between 

 the two grants which has never been assigned to either party. I have given the line as 

 it is usually understood by the lumbermen. 



Carlisle's grant is divided into the three townships of Carlisle, Webster, and Hub- 

 bard, by the proprietors. As these names appear upon the tax-list of Pittsburg, they 

 are placed upon the map, though they have never been sanctioned by the legislature. 



Our experience in matching together the townships in the northern part of the state 

 makes it clear that all the tracts of land there are larger than the bounds assigned to 

 them upon paper. After conference with engineers and map-makers, I find it to be a 

 general rule that land is always larger than the original surveys allow it to be. As- 

 tronomers allow a "personal equation" in their calculations from original observations ; 

 and, for the same reason, terrestrial boundaries require adjustment after their primal 

 measurements. 



I might mention other cases where names and boundaries have been adjusted differ- 

 ently from the previous maps, but do not think them of enough consequence to be 

 presented here. They all show how desirable it would be to have a new map prepared 

 having all its minutiae settled by competent authority. 



