221 



In timber sales and other transactions where M. B. F. constitutes the unit of 

 measure, omit the decimals. In all cases where the fraction is 500 feet or over increase 

 it to one M. B. F. and discard all fractional parts of less than 500 feet, thus: 



Write 5,124 M. B. F., not 5,124.49 M. B. F. 



Write 5,125 M. B. F., not 5,124.53 M. B. F. 



Do not enter fractional figures of cord measurements. A fraction of one-half cord 

 or over should be treated as a whole cord, and minor fractions discarded, thus: 



Write 350 cords, not 350.47 cords. 



Write 351 cords, not 350.58 cords. 



Care must also be taken to avoid the inadvertent insertion of decimals in con- 

 nection with such items as can be reported only in whole numbers, viz, cattle, 

 houses, ranger stations, etc., thus: 



Write 2,260 sheep, not 2..2CO.OO sheep. 



Write 16 houses, not 16. houses. 



The hundreds, thousands, and millions of whole numbers should be separated by 

 commas (,) thus: 



Write 1,000,000, not 1000000. 



Write 1,000, not 1000. 



This scheme does not conflict with that of the General Land Office in recording the 

 areas of land, except that only the regular subdivisions of sections are expressed in 

 whole numbers: as 40, 80, 120, 160, 320, or 640 acres. The areas of unconventional 

 sections or lots are expressed by whole numbers followed by a decimal point and two 

 decimals. If in the future any statements of Land Office legal subdivisions are 

 included in the Atlas, it will be most convenient to follow this plan. An example 

 of such a statement is: 



Sec. '2. All 638.26 acres. 



Sec. 3. Lotl 19.32 acres. 



Sec. 3. Lot 2 and S. \ NE. 119.20 acres. 



Please notice,- however, that where decimals are used there are always two. 



SILVICULTURE 



Timber Sale Advertisements- 

 Circular letter SM of April 22, 1908, directs that notices of sale be signed by the 

 supervisor without giving his title. Instances have occurred where inquiries in 

 regard to sale so directed to supervisors, who were in the field, have remained un- 

 opened, because they were taken to be personal mail. Hereafter in Class B advertised 

 sales the fourth line of the notice of sale, as given in the above circular letter, should 

 read "addressed to Forest Supervisor, National Forest, (address)," 



