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 LIVE 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 column 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 request 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 applicant’s railroad sta- 
tion, without cost to him. As the information 
requested on the application blank is used as a 
basis for determining the species to be assigned 
and to some extent the number of fish that will 
be furnished, the applicant should endeavor to 
have it as complete and accurate as possible. 
Fic. 5.—Pocket  ther- 
SELECTION OF SPECIES. Side Sgn 
particularly for nie 
c ~ £ in connection wit 
One of the most perplexing problems eos the distribution of 
fronting the division of fish culture is how to living fishes. | (De: 
distribute the product of its hatcheries in a man- Bese aitietti 
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 apply to the bureau for fishes for stocking waters, 
both public and private. ; 
Many persons who are familiar with some particular species of 
fish insist on its introduction into waters in which they may be 
interested. 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 
