118 FOREST PROTECTION AND CONSERVATION 
ESTIMATE 
An estimate of the stand of merchantable white pine has been 
made for all areas shown on the map and a list of the owners is 
compiled for each township, showing the total acreage and an 
estimate of the amount of the white pine. 
This estimate is obtained by taking the average of a number 
of one-half acre plots in each of the five sub-types of white pine. 
At least 25 such plots are taken as the basis for the estimate in 
each of the sub-types. 
The areas are obtained by plamimeter, and the estimate is 
worked up in connection with the field work. 
Tabulated forms follow, showing the estimate, both in acreage 
and total contents for each stand of white pine, and the totals 
for the township. 
It is intended that this shall be an estimate and not a detailed 
cruise of any one lot or of any particular lots of white pine, and the 
figures obtained shall not be applied to any one lot or stand of pine. 
These maps will be of inestimable value for blister rust control 
and eradication work. They will give a sound and definite basis 
for comparing the cost of eradication and control work with the 
actual value of the timber saved, and they will furnish a more 
accurate estimate and location of the white pine than has ever been 
available. The-results will also be extremely useful in planning 
all future operations for the continuance of State and Federal aid 
for the work. 
This work was carried out and the maps made at a cost of a 
little more than 2c per acre. 
The areas mapped for the season of 1919, blue-prints of which 
accompany and are a part of this report, are as follows: 
TOWN : ACRES SQUARE MILES 
Eliot 550.40 86 
Kittery 10,189.60 15.77 
South Berwick 4,594.20 7.18 
Wells 755.20 1.18 
York 36,024.40 56.21 
Total 52,113.80 81.20 
Of these, the only towns completed were Kittery and York. 
