NOTES AND CORRESPONDENCE ON THE SALMON AND TROUT. 371 

 B— OX STOMACHS OF SALMON AXD THEIR CONTENTS. 



1. — ON THE CECAL APPENDAGES OF THE STOMACH. 



New Haven, February 22, 1873. 

 Dear Sir: I looked over some salmon- stomachs last November. I 

 told Mr. Smith the result, and supposed that he put this item in with 

 his report to you. I learned the other day from him that this was not 

 the case. 



Tlie fact was, that there was no regularity" in the number or arrange- 

 ment of the cascal appendages. They ran all the way from 44 to 70, 

 gradually, continuously, and without grouping. 

 Very respectfully, 



JAMES K. THACHER. 

 Professor S. F. Baird. 



2. — ON THE CONTENTS OF THE STOMACH. 



New Haven, November 11, 1872. 

 Dear Sir : I have carefully examined the salmon-stomachs, sent on a 

 few days ago, but find nothing in them which could have served as food. 

 The stomachs themselves were entirely empty, except one, which con- 

 tained a single specimen of the external, Caligus-like, parasite, sent by 

 Mr. Atkins as from the salmon. This may hav^e been accidental. The 

 intestines usually contained, especially in the pyloric region, consider- 

 able mucus, which revealed nothing under the microscope. In several 

 specimens, the intestines contained a few fish-scales, which, I presume, 

 are those of the salmon, as they were also frequently found upon the 

 outside of intestines, and loose in the packages. 



In one specimen, there were two small bits of wood in the intestine 

 These specimens, with a few intestinal worms, which were found, I have 

 preserved to return with the stomachs as soon as you wish. 

 Very truly, yours, 



SIDNEY I. SMITH. 

 Professor S. F. Baird, 

 Washington. D. C. 



[According to Dr. A. C. Hamlin, the examiuation of many hundred 

 salmon in the Bangor market revealed no kind of food, excepting in a 

 single instance, where two small fishes were discovered. — S. F. B.J 



