FISHERY INDUSTRIES OF THE UNITED STATES, 1936 5 
Another part of the display consisted of a series of dioramas in 
“dlluvision,” depicting the oyster and shrimp fisheries of Texas, panels 
describing ’the life history of the oyster and the mussel-shell fishery 
and manufacturing of pearl buttons from mussel shells, and a series 
of colored transparencies depicting the various activities of the 
Bureau’s divisions. 
The exhibit which was erected in the Federal Building occupied a 
space of about 420 square feet, with an 11-foot ceiling. The Bureau 
was allotted $5,500 for its construction and maintenance. The exhibit 
was very popular with the visitors, and on some days up to 8,000 people 
viewed it. 
This exhibit will remain on display during 1937 as the exposition is 
being continued another season. 
GREAT LAKES EXPOSITION 
The main feature of the exhibit at this exposition in Cleveland con- 
sisted of a mechanically-operated diorama in a case (2 feet wide, 
7 feet long, 7 feet high), depicting the effect of thermal conditions in 
Lake Erie on the commercial capture of fish. Enclosed in other cases 
of approximately the same size as the above were displays showing the 
many uses to which fishery products are put in the arts and industries, 
methods for catching Great Lakes’ fish, culture of fish, preservation 
of textile fishing gear, food value of fish, the Alaska fur-seal industry. 
A framework above the cases mounted a series of colored transparen- 
cies of Bureau activities. 
The entire exhibit which was erected in the Hall of Progress occupied 
a space of about 300 square feet, with a 17-foot ceilmg. The Bureau 
was allotted $2,000 for its construction and maintenance. As with 
the Dallas exhibit, it was most popular with the visitors. On some 
days in excess of 5,000 people viewed it. 
This exhibit will remain on display in 1937 as the exposition will 
continue another season. 
CALIFORNIA PACIFIC INTERNATIONAL EXPOSITION 
At the close (after two seasons) of the California Pacific Interna- 
tional Exposition at San Diego, Calif., in the fall of the year, members 
of the Division dismantled the Bureau’s exhibit on display there and 
shipped the material to storage in Washington, D. C., and elsewhere. 
This exhibit, which was er ected in the Federal Building, occupied a 
space of about 225 square feet and the Bureau was allotted $2,500 for 
its construction and maintenance. A brief description of the exhibit 
is given in the report of this Division for the year 1935. We are 
informed that this display received very favorable comment from 
visitors, even though it was placed in rather crowded quarters. 
ECONOMIC AND MARKETING INVESTIGATIONS 
There is a recognized need for economic and marketing studies as 
aids to the industry in merchandizing its commodity. Such studies 
have been made by the Division in the past and are being continued 
now as far as possible with the limited funds available; however, they 
have not been on a scale commensurate with so important an industry, 
and one which is in such obvious need of these services. 
The need for information along economic and marketing lines long 
has been realized by the fishery industry. Therefore, it endorsed, 
