58 



THE NATIONAL FORKST MANUAL. 

 PHOTOGRAPHIC PRINTS. 



SOLAR BROMIDE MAPS. 



Lantern slides ' each $0. 35 



Bromide enlargements per square inch-- 

 Bromide enlargements (sepia) __do__ 



Transparencies do . "l.~> 



Blue prints . per square foot-- 

 Vandyke prints do__ 





ub- 



. 



Hand coloring will be done on lantern slides at 65 cents each, on bromides 

 1 cent per square inch, and on transparencies at 2 cents per square inch. 



Substitutes for Defective Prints Sold. 



When money is received in advance for photographic work from negatives 

 which may be defective, it can not be returned, because it is deposited with 

 the Treasurer of the United States and is not available for Forest work. Sub- 

 stitutions of equal value can be made, however, from other negatives. 



Policy. 



The present purposes of the Forest Service in taking photographs are restrict 

 to the following : 



(1) Temporary pictures, necessary to accompany manuscript reports or fur- 

 nish evidence. 



(2) Progress pictures, where the changing conditions at any locality can be 

 best shown by two or more photographs. (This does not mean that pictures 

 should be taken to show the rise and fall of streams or the depth of snow when 

 gauge readings and i)rofiles are the best and most acceptable form of record.) 



(3) Special pictures, having unusual interest, which may be used as 

 trations in bulletins or other publications. 



(4) ~Kew> pictures, covering subjects not now in the Service collection. (' 

 does not mean that every new permanent improvement must be photographed, 

 unless it involved some extraordinary feature or difficulty of construction. The 

 author should remember that some view which may be new to him may 

 quite commonplace in the Service at large.) 



The general policy in regard to permanent pictures for the collection 

 obtain i'ewer but better and newer pictures. 



may be 



n is to 



IN THE FIELD. 



Cameras. 



Cameras are nonexpendable property and are issued by the property clerk 

 at Ogden, Utah, on request (Form 668) approved by the District Forester. 

 Cameras should be issued only to competent men, and be used only when neces- 

 sary. When no longer needed they should be returned to the District Forester 

 or to the property clerk. Unless there are special reasons to the contrary or 

 one camera should be allowed to each Forest. 



Films. 



Films are nonexpendable property, purchased under contract, and are 

 by the Forester on request (Form 988). Care should be used to indicate 



