590 AMERICAN FORESTRY 



countless small irregular surveys rang- recorded the trees tallied under diam- 



ing from patches of fifty to sixty up to eter breast high and the number of 



tracts covering several hundred acres, sixteen foot logs to half log lengths. 



Much time had to be spent by the The method used was the parallel al- 



"landline crew" in re-running the ternate strips and 50% of area was to 



boundaries of these tracts and as in be covered. The various shapes of the 



many cases the original work had been areas covered necessitated running the 



done a great many years before, a strips in various ways, but the per cent 



good deal of trouble resulted. Finally covered had to remain approximately 



all of this work was done and the the same. For the two-men crews, 



whole region which was to be estimated however, the per cent covered was only 



was mapped to the scale of 2,000 feet 25. The compassman ran the lines 



to the inch. Then small maps or trac- .across the tract parallel to each other 



ings were made of the different areas and the two estimators walked on 



which each crew was to cover in de- either side of him, each counting all 



tail. These tracings covered on the of the trees on the strip lying between 



average about three sections of land himself and the compassman 5 rods 



1920 acres and the crew was required and also on a 5-rod strip on the other 



to estimate the timber, make a topo- side, of 10 rods in all and 20 rods for 



graphical map to the scale of 2,000 feet the crew. All merchantable trees were 



to the inch and which gave the eleva- divided into two classes "Pine" and 



tions in 10-foot contours, collect a de- "Others." In the case of the former 



scription of the different types of the or the "Pine," every fifth tree counted 



forest found on the area, and hand in a was tallied, the tree nearest the cruiser 



written report on all of this material, being the one tallied in every case, ac- 



The time allowed for the w r hole work cording to the diameter breast high and 



was one w r eek. the number of sixteen foot logs. In 



In doing this work the tracing map the class of "Others" belonged the 



area was divided up into "blocks" of as gums, cottonwoods, sycamores, oaks, 



nearly 160 acres in size as possible, etc., and they were tallied log by log, 



Each of these blocks was estimated the number of trees being so much less 



separately using different tally sheets than in the case of the "pine" that the 



for each, but running the compass lines "one in five" system was not necessary, 



right through all of them, and then by and also as we had no volume table 



adding up the different estimates for adapted to such trees every log had 



the blocks, the contents of the whole to be tallied separately, 



area was gotten. In addition to the above data, it was 



The crews were made up with three necessary to take notes for a forest 



men in them as a rule, but in a couple description. This was to cover the per 



of cases two men crews were used, cent of the different species present, 



Each crew had for equipment a staff the average clear length of bole, the 



compass, two pairs of calipers, a trac- form of- the timber whether knotty, 



ing map of the area to be covered crooked, etc. the amount of damage 



note books for the daily tally of trees, done to the forest by fire, insects and 



erasers, pencils, scales graduated to rot and data which might come up in 



decimals of an inch, canteens, blazing the course of the cruise. The amount 



hatchets and haversacks for carrying and condition of the young growth 



lunch. both of pine and others both in the 



One man ran the compass for one- forest proper and on any old fields or 



third of the time while the other two deserted clearings also was required, 



estimated and took notes on the forest. And finally the condition of the repro- 



The former also had to make a topo- duction as differentiated from the 



graphical map as he went along. The young timber and some idea as to 



cruisers as differentiated from the how the different species reproduced 



Ci.mpassmen had a tally sheet made themselves in different parts of the 



out in their note books in which they area covered. 



