60 IOWA STUDIES IN NATURAL HISTORY 
town with its countless swarms of negroes in their characteristic 
activities. 
5. Laboratory work. Dr. Job had immediate charge of this 
and encouraged the constant use of the facilities at his com- 
mand. Studies of the embryology of the white sea-urchin, 
Hipponoé were carried on, and in general the living marine 
forms were investigated so far as time would allow. While the 
continuity of the laboratory work was seriously interfered with 
by other activities just described, as well as by the almost con- 
stant inflow of specimens a good deal of interesting work was 
accomplished in spite of these drawbacks. 
One of the adjuncts of the laboratory was the ‘‘live ecar’’ 
planned by Dr. Job. This was made of wire netting stretched 
over a wooden frame and divided internally into three com- 
partments. It was attached at one end to one of the bath 
houses and at the other to the landing dock near the north end 
of Pelican Island. As noted before the fish were nearly all 
dead before they could be transported from the fishpots to this 
ear, which was used in keeping a supply of sea-urchins alive for 
laboratory work. 
6th. Hauling the fishpots. Four of these were constantly 
in use during our stay and were hauled about once in three 
days. They were anchored out near the reefs and secured a 
good catch of reef fishes, many of them excellent for food and 
nearly all brilliantly colored. Hardly any other experience 
during the cruise was more interesting than contemplating the 
extraordinary vividness of the contents of the fishpot. No 
flower bed nor collection of tropical butterflies could surpass 
the bright color of these fishes, and we all immensely enjoyed 
surveying the contents as they were brought in. Of course 
these colors faded very soon after death, and nothing in the 
preserved specimens indicates their real appearance in life. 
We were aided greatly in the identification of these specimens 
by the very beautiful plates in Dr. Evermann’s admirable work 
on the ‘‘Fishes of Porto Rico,’’ published by the United 
States Bureau of Fisheries. 
All of these activities kept us abundantly occupied. The 
various parties usually returned by lunch time, when the wel- 
come sound of the dinner horn of Strombus shell, called us with - 
