REPORT OF COMMISSIONER OF FISH AND FISHERIES. LXVII 
expeditions amounted only to the actual field expenses of the assist- 
ants, while the reconnaissance of the Ohio River by Dr. Henshall and 
Prof. Gilbert involved no outlay whatsoever on the part of the Fish 
Commission. The collections made by Dr. Jordan’s parties were sent 
directly to the University of Indiana, where they were studied and 
where the reports upon them were prepared. The first series of the 
specimens of fishes has been deposited in the IT. S. National Museum 
at Washington, and the second series in the museum of the University 
of Indiana. Over 7,000 specimens, representing 141 species and sub- 
species, of which 14 were new to science, were obtained during the 
summer investigations in the Alleghany region. From this material 
30 duplicate sets of fishes were made up, the same being donated to as 
many educational institutions, some located in the States where the 
work had been conducted, the others elsewhere in the United States 
and in Europe. The crayfishes, of which many specimens were secured 
in the different regions examined, have been referred to Prof. Walter 
Faxon, of the Museum of Comparative Zoology, Cambridge, Mass. 
Dr. Jordan has already begun, with the cooperation of Prof. B. W. 
Evermann, a complete record of all that has so far been discovered 
respecting the fresh- water fishes of North America, which, when pub- 
lished, will serve as a basis for future explorations. Its completion 
will be delayed, however, until the preliminary surveys now in progress 
have been finished. 
The States and Territories into which the investigations were ex- 
tended during the year 1888-89 numbered eighteen and are as follows : 
New York, Virginia, West Virginia, North Carolina, South Carolina^ 
Tennessee, Kentucky, Georgia, Alabama, Mississippi, Louisiana, Ohio, 
Indiana, Michigan, Iowa, Missouri, Arkansas, and Alaska. The work 
accomplished in each region is summarized below: 
The Hudson River , New Yorlc . — That the Hudson River is not a nat- 
ural salmon river is probably due in greater part to the fact that all 
localities suited to the spawning habits of the fish have been cut off 
from the main river by insurmountable obstructions. The first sys- 
tematic attempt to stock the Hudson artificially by the planting of fry 
from the Penobscot River, of Maine, was begun in 1882 and has been 
continued down to date. In order to test the utility of these efforts an 
investigation of this river and of some of its tributary streams was 
made during the summer of 1888 by Mr. Fred. Mather, of the Cold 
Spring hatchery, New York, under the direction of the U. S. Fish Com- 
missioner. The specific objects of this inquiry were to ascertain as 
nearly as possible the number of adult salmon ( Salmo salar) caught in 
the Hudson River during the previous season; to determine the possi- 
bilities of taking salmon eggs on that river in sufficient numbers to 
warrant the establishment of a temporary station for that purpose : to 
examine the small streams with reference to their fitness for developing 
the young fish during their river life; and to learn the height and 
