MOTION PICTUKES. 531 



Minor revisions were completed in the case of about 40 other sub- 

 jects, this work involving changes in the negative and each existing 

 print. 



New films on which considerable work was done and which should 

 be completed within the next few months include : 



Hoppers. (Bureau of Entomology.) 



Sir Loin of T-Bone Ranch. (Bureau of Animal Industry.) 

 The Woolly West. (Bureau of Animal Industry.) 

 Pines for Prosperity. (Forest Service.) 

 Laying Lumbricus Low. (Bureau of Plant Industry.) 

 The Modern Pied Piper. (Biological Survey.) 

 The Clean-up. (Bureau of Animal Industry.) 

 Bob's Ton Litter. (Bureau of Animal Industry.) 

 Bird Banding Work. (Biological Survey.) 



The Soil a Heritage. (Bureau of Agricultural Economics, Bureau of Soils, 

 and Bureau of Plant Industry.) 



Preparatory work of various kinds was done on 15 other projects 

 of less definite status. 



PURCHASES LARGEST ON RECORD. 



Purchases of prints from our negatives during 1923 reached a 

 new high total of 294 prints, for which the purchasers paid approxi- 

 mately $14,280. All purchases were made from a commercial film 

 laboratory in New York after authorization from the motion-picture 

 office, and were subject to conditions prohibiting any change in the 

 films without approval from the department and prohibiting the in- 

 sertion or addition to the films of any advertising matter. In effect 

 these purchases add greatly to the usefulness of the films without 

 cost to the department. 



