THE PAN-AMERICAN EXPOSITION REPORT OF THE REPRE- 
SENTATIVE OF THE UNITED STATES FISH COMMISSION. 
By W. vE C. RAVENEL. 
Under the act of Congress approved March 3, 1899, providing for 
the participation of the United States Commission of Fish and Fish- 
eries in the Pan-American Exposition, for the purpose of illustrating 
its functions, the Commissioner appointed W. de C. Ravenel, the 
assistant in charge of the Division of Fish Culture, as the representa- 
tive on the Government Board of Management. 
Of the amount appropriated in the act above referred to $40,000 
was allotted for the preparation, installation, and maintenance of the 
Fish Commission exhibit in the south pavilion of the Government 
building. This building, 140 feet syuare, contained about 10,000 
available square feet of space for exhibition purposes, 6,500 feet being 
set aside for an aquarium and the balance for the exhibits embraced 
under the three heads, scientific inquiry, fish-culture, and methods and 
statistics, and arranged as shown on plates 16-20. 
DIVISION OF SCIENTIFIC INQUIRY. 
The aim of the exhibit of the Division of Scientific Inquiry was to 
illustrate the methods and apparatus employed by the Fish Commis- 
sion in conducting its investigations and some of the results attained 
by their use. Many of the instruments used in the laboratory—imicro- 
scopes, microtomes, dissecting instruments—were known to the public, 
and the purpose was therefore to utilize the available space for an 
exhibit of apparatus used in making shore and deep-sea collections, 
most of which was invented or modified by persons in the service of 
the Commission. 
The arrangement of the exhibit was as follows: 
Facing the aisles were models of the A/batross and Fish Hawk, the 
largest vessels belonging to the Fish Commission, to which we owe 
much of our present knowledge of the life in the deep waters off the 
coasts of the United States and in the West Indies. The /7%sh [lawh, 
besides carrying on marine biological investigations, is also used 
during certain seasons of the year asa hatchery for the propagation 
of shad and other economic marine animals, a service in which she has 
rendered valuable aid in perpetuating the fisheries. The A/batross was 
designed especially for the investigation of the off-shore fisheries and 
has done more work in deep-sea research than any other vessel in the 
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