PROPAGATION AND DISTRIBUTION OF FOOD FISHES, 1921. 



91 



two wooden cars still in use be replaced with cars of steel at an early 

 date. In addition to the advantages already cited, it is frequently 

 necessary to accept second-class service in the movement of the 

 wooden cars, as many railroads refuse to move them in their first- 

 class trains. 



POCKET THERMOMETER FOR USE IN CARRYING lAVE FISH. 



An improved device of interest in connection with the distribu- 

 tion of live fish is a pocket thermometer designed especially for the 

 convenience of messengers in making shipments 

 of fish or fish eggs. The cokunn of mercury is 

 protected by a hard rubber jacket, provided with 

 a pocket clip and a ring, to which a cord may 

 be attached. The advantages claimed for it over 

 the type of thermometer previously used are its 

 lighter weight and its greater convenience when 

 in actual use. It is also less subject to breakage 

 than the metal- jacketed thermometer. 



Procedure in Assignments of Fishes to 

 Applicants. 



APPLICATION BLANKS. 



On receipt of a recpiest for fish the bureau 

 supplies a blank calling for a complete descrip- 

 tion of the waters to be stocked. When the 

 blank is properly executed and returned with the 

 indorsement of a Member of Congress, the bu- 

 reau endeavors to assign a suitable species of fish 

 thereon, and the delivery is made at the earliest 

 practicable date, at the a2)pru'ant\s railroad sta- 

 tion, without cost to him. As tlie information 

 requested on the application blank is used as a 

 basis for determining the Kjieeies to be assigne<l 

 and to some extent the number of fish that will 

 be furnished, tiie applicant should endeavor to 

 have it as complete and accurate as possible. 



SELECTION OF SPECIES. 



b.-^i 



u 



O 





I'li;. 5.- rocket ther- 

 mometer designed 

 particularly for use 

 in connection with 

 tlie dlstrll)utii)n of 

 living fishes. (De- 

 signed by E. C. Fear- 

 now.) 



One of the most perplexing problems con- 

 fronting the division of fish culture is how to 

 distribute the product of its hatcheries in a man- 

 ner which will bring about the best results and 

 at the same time be just and equitable to the large number of persons 

 who every year ai)ply to the bureau for fishes for stocking waters, 

 both public and piivate. 



Many persons who are familiar with some particular species of 

 fish insi.st on its intro<luction into waters in which they may be 

 int*'rested. In one case an applicant who has recently moved to a 

 new section of the country wants his favorite fish in the local waters, 

 while in another case an applicant applies for a certain species on 



