24 NORTHWESTERN BOUNDARY OF UNITED STATES. [bull. 174. 
the next, longitudes 116° to 118i°, from Inchuintwn River to Mooyie 
and YaK k Divide; the next longitudes, 118i° to 121°, from Divide 
of Cascade Mountains to IncJvuinHim; and the last, longitudes 121° 
to 123i°, from Point Roberts 1<> Divide of Cascade Mountains. 
The geographic positions of the various camps, stations, etc., are 
given on these maps, as are also the longitudes of the boundary monu- 
ments, accompanied by brief descriptions of the locations. These 
positions, classified in two groups and arranged in order of longitude, 
are printed on pages 28-39 of this bulletin. 
The preparation of the 13 final original drawings was apparently 
begun in 1863. There is an autograph memorandum by Mr. G. Clin- 
ton Gardner, dated June 30, 1863, containing an estimate of the time 
required to make these drawings. He estimates that the drawing of 
seven sheet of 1:120000 scale will take eighty-two weeks' work, and 
that two sheets of the general map of 1:720000 scale thirty-five weeks' 
work. After discussing methods and costs he adds: 
The scale spoken of by the English commissioner for the general map was 
1 : 600000, but that scale would require larger sheets than those used for the detailed 
maps. I have therefore proposed to use for the general maps 1/0 instead of 1/5 of 
that of the detailed maps in order that all the sheets shall be of uniform size. 
As to the drawing of these sheets and their cost, there are three 
memorandums in the handwriting of Mr. Gardner. The first, undated, 
is as follows: 
Seven detail sheets from Point Roberts to Rocky Mountains, at 
$600 $4, 200 
The water-boundary sheet 1 , 800 
The two general sheets, one from Columbia River west 1 , 500 
And the other from Columbia east to Fort Benton 1, 000 
8, 500 
The second memorandum, dated October 31, 1861, is as follows: 
The seven detail sheets have cost $4,085, [and] when com- 
pleted [will cost] $115 [more] $4, 200 
The general sheets have cost $1,867, [and] when completed [will 
cost] $813 [more] 2, 500 
The water-boundary sheet has cost $750, [and] when completed 
[will cost] $925 [more] 1, 675 
Total . 8, 375 
The third memorandum, dated January 1, 1865, is as follows: 
Water-boundary sheet $2, 000 
Detail sheets, 7 at $600 4, 200 
General maps, No. 1, $1,800; No. 2, $1,400 3, 200 
Total cost of the drawing of maps 9, 400 
Thus it appears that the drawing of these maps was completed late 
in 1864 or early in 1865. The photographic copy of them in the Gen- 
eral Land Office is dated 1866. 
