February, '17] WALDEN: INSECT PHOTOGRAPHY 25 



whole state, because it is possible to make the directions more definite 

 and to better adapt them to local conditions. 



The farm bureau as organized in New York state has proved a most 

 efficient agent for teaching methods of insect control in a practical 

 way. Only a little over half of the agricultural counties of the state 

 have farm bureaus, but when the whole state is organized it will be 

 possible to reach any community quickly and effectively where there 

 are insect problems needing a solution. 



The farm bureaus offer facilities that greatly increase the efficiency 

 of the extension work of the college. The responsibility of initiating 

 and guiding this work along entomological lines rests upon the exten- 

 sion entomologists of the colleges. The problems to be solved are 

 problems of applied entomology. They must be worked out b.y persons 

 whose training and main interest are in entomology. They cannot be 

 solved by the professional extension worker whose interest in ento- 

 mology is secondary and whose knowledge of the subject is superficial. 



Vice-President G. A. Dean: The next paper on the program will 

 be read by Mr. B. H. Walden. 



SIMPLE APPARATUS FOR INSECT PHOTOGRAPHY 



By B. H. Walden, Agric. Expt. Sta., New Haven, Conn. 



The subject of insect photography has been well covered by at least 

 three papers read before this Association, containing much valuable 

 information on the methods of technique which, to a certain extent, 

 must be followed by all workers. 



The present paper does not deal with this phase of the subject, but 

 is rather a brief description of the simple photographic apparatus and 

 methods for field and laboratory work used in the entomological de- 

 partment of the Connecticut Agricultural Experiment Station. Our 

 laboratory photographs are made in one corner of the general work- 

 room, where there is not room for a large and elaborate outfit, such as 

 a camera and stand with an eight- or ten-foot bed. The work is done 

 by the regular members of the department, often when the time could 

 be used to advantage in the regular work. The apparatus then, should 

 be as simple as possible, and easily and quickly adjusted. It usually 

 follows that the larger or more elaborate the outfit, the more time it 

 takes to manipulate it. 



Laboratory Outfit. — The stand of the laboratory camera is the 

 regular Folmer and Schwing laboratory stand on which the camera 



