194 FOREST REGULATION 



length, conditions, and present value per mile and total. This also 

 is accompanied by an improvement map, or by special road and 

 trail map. 



The above four lists are corrected to date once every year. 



5. Detail Report, or Detail Description of the forest by lots ; 

 with maps. Each lot receives at least two sheets, more if needed. 

 On one of these sheets is recorded the full description of the lot, 

 the land and stand, with estimates, etc., in the way that it is recorded 

 in the field, i. e., same topics, same number of columns. On the 

 other sheet is recorded any work, expense and income in connection 

 with this lot, such as planting, thinning, etc., also every cut of timber, 

 the amount and value taken, and in this way an accurate history of 

 each lot is established and maintained. Every log cut should be 

 scaled as coming from its lot, and the totals of the scale report 

 should be recorded on this lot sheet. If any part of the lot is planted, 

 seeded, or fail parts of a plantation corrected, the year, the area, 

 method, cost per acre, and total and the success (end of year or two 

 years) is noted. 



This record, on a large property, comprises hundreds of sheets, 

 and is arranged by sections or blocks, and townships, for con- 

 venient use. 



The description part of this record in an older forest property 

 is revised once every ten or twenty years ; in new enterprises it is 

 corrected as opportunity offers ; some of this is done every year. 

 But in any case a complete working over of the property should 

 occur at certain regular times, not over twenty years apart. When 

 that is done, the old sheets are kept, and new ones added. 



6. The General Report of the Property. This compilation, 

 explained at length before, is filed separately for convenient use. 

 Like the detail description, it is re-written at set times, but in new 

 enterprises, it is modified, chiefly enlarged, every year. 



The manner of filing these documents is a mechanical affair and 

 is done to suit. Filing flat, with sheets standing in Manila folders 

 is certainly as convenient as any way and in small enterprises the 

 equipment for such a file need not be elaborate. Since the gathering 

 of all information here enumerated, especially the detail description 

 of the forest, costs a great deal of money, these documents should 

 be copied and safe storage provided. 



