19 



OFFICE X)F 



Applications for Films 



Members of the Service, in requesting films, should indicate the exact make of 

 camera for which they are desired. The Section of Photography is very often at a 

 loss to tell what size of films to send in filling requisitions, when this information is 

 not given, and considerable delay is caused by unnecessary correspondence. 



A list of the cameras and kodaks carried in stock is given below, together with the 

 kind and size of films which should be ordered for each: 



7// x 5" requires No. 5 C. K. films. 



films. 



Century Camera, with roll, ^''xS" requires 5" R. H. films. 

 Century Camera, with rool holder, 5 /x x 7" requires 7" R. H. films, 

 No. i Folding Hawkeye, <' x o // requires No. 4 B. E. films, 



OFFICE OF ORGANIZATION. 



Apparatus to Conserve Amount of Snow 



In accordance with the following letter from Mr. Willis L. Moore, Chief United 

 States Weather Bureau, the Forester will be glad to receive suggestions from Forest 

 officers with regard to devising some form of apparatus which will automatically 

 conserve the amount of snow which falls and provide for its water equivalent. 



MAY 18, 1908. 



Hon. GlFFORD PlNCHOT, 



Forester, Forest Service, Washington, D. C. 



DEAR SIR: In viejv of the obvious difficulties of securing records of the snowfall 

 in the remote regions of the mountains, where direct observations can not be made 

 after each storm, it is very important to devise some form of apparatus which will 

 automatically conserve the amount of snow which has fallen and provide for its water 

 equivalent. 



Many efforts have already been made by meteorologists to devise such an apparatus, 

 but it is felt that suggestions as to the best form to be adopted are still very desirable. 



Will you call the attention of your officers in the field to this problem, especially 

 those who are familiar with the 'practical difficulties in the mountains, and request 

 them to furnish through y >u to the Weather Bureau such plans or methods of observa- 

 tions and record as seem to them to be of value. 



The ordinary straight tube with a receiver is defective because the wind carries the 

 snow past the orifice without recording the same amount of snow that would fall 

 vertically in the calm air; all forms of obstructions, set up local currents which also 

 defeat the purpose. When snow is collected and remains for some weeks without 

 measurement, an uncertain amount is lost through evaporation. If sleety snow blows 

 upon an open mouth receptacle, it is soon clogged up, and may remain unserviceable 

 for a considerable time. These and other difficulties ought to be carefully considered 

 by those who make suggestions, but it is very desirable that the best form of apparatus 

 should be secured within the next few months. 



Very respectfully, WILLIS L. MOORE, 



Chief, U. S. Weather Bureau. 



Follow-up System 



The follow-up system prescribed in Service Order 14 has been incorporated into 

 the new Use Book. Its effectiveness depends upon the promptness of supervisors 

 in returning the cards with promised date of action and their punctuality in getting 

 the reports to Washington by the time promised. When a card is not returned by 

 the supervisor within reasonable time, a second card stamped " Second notice, prom- 

 ise" will be sent out. After the promise is made, in case the report does not reach 

 the Forester by the time set, a duplicate of the card on file will be sent to the 

 supervisor, stamped "Second notice, report." In either case the same stamp, fol- 

 lowed by the date on which the second notice is sent out, will be placed upon the 

 slip or card on file in the office. 



