1914 J Correspondence. 137 



even only half this strength will do fairly well for a few days. One incision 

 only which may be about tliree inches long, should be made in the ventral 

 abdominal wall just to one side of the median line. The bird should then 

 be placed in the formaUn solution which should if possible be several timea 

 the bulk of the bird. If large containers are not available, a smaller amount 

 of the solution may be used but it should be changed twice during the 

 following week. Specimens should be kept in the formalin solution for a 

 week or more, after which they may be wrapped for shipment with cotton 

 which has been soaked in the same solution. Oiled paper or something 

 equally impervious should cover this, and the package may then be packed 

 in a box for shipment. Shipments should be addressed care of the Labora- 

 tory Supply Department, Room 10 Botany Building, University of Chicago. 



Very truly yours, 



R. M. Stronq. 

 HuU Zoological Laboratories, The University of Chicago. 

 November 3, 1913. 



' Teaching A Bird Course.' 



Editor of ' The Auk:' 



In the Review of my paper on ' Teaching a Bird Course ' which appeared 

 in the January, 1913 'Auk,' the reader is led to believe that the course in 

 Ornithology which I give at the University of Chicago is designed only for 

 those who wish to learn to identify birds. This interpretation of my paper 

 is probably due to the fact that most of my discussion dealt with pedagogical 

 problems of field work and identification of specimens. As a matter of 

 fact, the lectures which occur twice a week, cover a field almost equal in 

 credit value to the balance of the course. Taxonomy occupies a very small 

 place in the lectures. They are devoted primarily to bird morphology and 

 physiology, including also such topics as migration and behavior. 



Very truly yours, 



R. M. Strong. 

 The University of Chicago, 

 November 3, 1913. 



