LXXXIV REPORT OF COMMISSIONER OF FISH AND FISHERIES. 
occupy the center of the main room, which is also supplied with other 
necessary conveniences for this branch of work. In the upper story 
there is a physical and chemical laboratory and a photographic studio. 
In front of the station are three basins of water, two of which are en- 
tirely inclosed, the third having an opening on one side for the passage 
of boats. The former are adapted to the penning of live fishes, and 
afford facilities for the study of their habits under conditions which 
are more or less natural. Several live- cars are anchored near the 
shore, and the station is Avell provided with small boats, including a 
sailboat and steam launch. The steamer Fish Ha wk was at work in 
the neighborhood of Wood’s Holl from August 5 to September 7, 1888, 
and the schooner Grampus made its headquarters at the same place 
during the latter part of the season, while investigating the mackerel 
region between Nantucket and Virginia. Opportunities for collecting 
were afforded by both of these vessels. 
During the summer of 1888 the laboratory was in charge of Prof. John 
A. Byder, of the IT niversity of Pennsylvania, formerly an assistant on 
the Commission, and widely known for his extensive and careful re- 
searches on the embryology of fishes and other aquatic animals. For 
the details of the work accomplished under his direction reference 
should be made to his report printed in Appendix 5 to this volume, pp. 
513-522. The season lasted from July 1 until October, and during that 
period seven important educational institutions were represented at the 
station by the following investigators: The University of Pennsylvania 
by Prof. Byder and Mr. W. S. Marshall 5 the Museum of Comparative 
Zoology of Harvard College by Mr. H. H. Field, Mr. W. McM. Wood- 
worth, and Dr. and Mrs. C. H. Eigenmann; Johns Hopkins University 
by Prof. W. K. Brooks, Dr. E. A. Andrews, Mr. S. Watase, Mr. C. F. 
Hodge, and Mr. T. H. Morgan; Princeton College by Professor Mil- 
ler, Mr. C. F. McClure, and Mr. J. Warne Phillips; Swarthmore Col- 
lege by Prof. Spencer F. Trotter; Wooster University, Ohio, by Prof. 
H. N. Mateer; and the Lake Laboratory at Milwaukee, Wis., by Dr. 
William Patten, who arrived at Wood’s Holl early in June and remained 
until the latter part of July. Dr. Benjamin Sharp, of Philadelphia, was 
at the station in March, 1888, making a study of the development of the 
winter flounder or flatfish, Pseudopleuronectes americanus , which spawns 
at that time. Prof. S. F. Clarke, of Williams College, Prof. J. S. Kings- 
ley, of the University of Indiana, and Mr. G. H. Parker, instructor in 
biology in the Museum of Comparative Zoology, were also present for a 
few days during the summer, chiefly for the purpose of obtaining ma- 
terial to be used in class demonstrations. The Commissioner established 
his office at the station during the latter part of the season, and Dr. 
T. H. Bean, the ichthyologist of the Commission, was there during the 
last few weeks, making some observations respecting the local fishes. 
Professor Byder’s studies related to the embryology of the sea bass 
(Serranus atrarius) and the development and anatomy of the Atlantic 
