the lower portion of the form in column T contains the TGRADS reading at that height on 

 the tree. Column F contains the FGRADS reading, and column S contains the sine eleva- 

 tion reading. Four rows across the columns contain the data to be punched into one 

 card. Note that the first, fifth, and ninth lines have space for an extra digit on the 

 left edge of the TGRADS column. In these places put 1, 2, and 3 in consecutive order 

 to denote the first, second, and third card on which the data will be punched. If the 

 number of measurements taken on any tree necessitates continuation on another card, 

 write 4, 5, 6, etc., in corresponding spaces on the second card. The fourth, eighth, 

 and twelfth lines contain similar extra spaces at the right of the double column 

 headed G. The characters written in these spaces denote the last measurement for a 

 particular tree on a given punch card, and signify the kind of measurements for the 

 same tree that will follow on the next punch card. This will be discussed in detail 

 later . 



Consider once more the data spaces on the top half of the field form. What follows 

 describes the entry of data into them. 



Item j Column 



1-4 



5 

 6-9 

 10 

 11 



12-16 

 18-21 



23-25 



28-30 



32-34 



36-38 

 40-41 

 77-80 



The top portion of the field form (fig. 8) can be completed in far less time than 

 it takes to tell about it. Dendrometer measurements are recorded on the lower portion 

 in the columns headed T, F, and ±S . The column headed G may be used to record the grade 

 of the section below the point of observation. The following section on measurements 

 describes the proper recording of data line by line and column by column, following the 

 sequence in which measurements will be taken. 



First Measurement 



The first measurement to be recorded is stump diameter. The one-digit box added 

 at the left edge of the first line of column T contains 1. This shows, when the data 

 are punched into cards, that the card containing the first four rows of dendrometer 

 measurements is first in the sequence of dendrometer cards for this particular tree. 



TREE NO. 



CT (Card counter) 



KPI (Value prediction in 3P sampling 



STR (Stratum) 



CERT (*, =) 



(Distinguishes probability-sample trees 

 from sure-to-be-measured trees in 

 3P sampling) 



CLASS (Species) 



D.b.h. (Inches and tenths. Decimal is 

 implied between columns 20 and 21) 

 OPl . . . 0P3 (Not used by NETVSL) 

 BARKl"! r Enter two bark 



j thickness measurements 

 ] taken at breast height 

 BARK2 Implied decimals between 

 ^ columns 29-30 and 33-34, 

 ^respectively J 

 UMAXL (Not used by NETVSL) 

 UDORT (Not used by NETVSL) 

 JOB (Use only 3-digit plot number 

 number for NETVSL. Enter zero 

 in column 77) 



23 



