24 
by assistants working under his direction. Since the beginning of this work 
it has been merged in that of a Chemical Survey of the waters of the State 
established at the University in consequence of appropriations made by the 
State legislature to that end during the winter of 1895. One hundred and 
ninety-three analyses in all have now been completed and a report setting 
forth the comparative results will be published during the current year. 
REPORTS AND PUBLICATIONS. 
The final major product of our Station work must be in the form of pub- 
lished papers and reports, our material accumulations being of merely secondary 
interest and value and often of only temporary use. Necessarily, however, $0} 
soon after the organization of the work, it has not been possible to prepare and) 
to publish papers of a sort adequately to represent the ideals of the Station! 
management or to illustrate its final ends. Nevertheless, considerable contri-| 
butions to science resulting from the investigations of the Station staff have 
already been printed or are now in press and the preparation of manuscript! 
is going actively forward in several departments. Quite in accordance with) 
h 
our original expectation, visiting students who have availed themselves of the 
facilities of the Station have prepared or are now preparing papers embody-| 
ing the results of their investigations, credit for which must belong in part 
to our establishment, without which they would not have been written. 
The principal contributions now in print are papers by Mr. Hart, Mr. Hempel, | 
‘and Professor Smith. The first of these is an article by Mr. Hart on the ento-) 
mology of the Illinois River and adjacent waters, filling one hundred and| 
twenty-five pages of our Laboratory Bulletin and illustrated by fifteen half- 
tone plates. Professor Smith’s additions to a knowledge of our oligochete 
worms have appeared as two papers of the Laboratory Bulletin, describing 
four new species and a new genus of these animals, with a large amount of 
anatomical and histological detail. We have also printed an article by Mr. W. H. 
Ashmead, of the United States National Museum, on parasitic Hymenoptera 
bred from aquatic insects at Havana, containing descriptions of three new 
species. Four new species of Protozoa and three of Rotifera from Station 
situations have been described by Mr. Hempel in an article of the State 
Laboratory Bulletin, accompanied by five plates of illustrative figures. 
We have now going through the press a third paper by Professor Smith, 
containing a description of a new genus and two new species of oligochete 
worms from Havana, and of one from Florida, together with a description of 
the reproductive organs of Pristina, upon which subject nothing has hereto- 
fore been known. This article will be accompanied by four plates. A paper 
on the Ostracoda of North America, by Mr. R. W. Sharpe, a graduate stu- 
dent of the University, is also in press. This article has been made to include 
the product of a careful examination of the collections made in this group 
from the opening of the Station to the midsummer of 1896. It is accompanied 
by'ten plates. 4 a 
Mr. Hempel’ S observations on tha Protozoa and fa Rotifera of the Station, 
accumulated during’ two years’ continuous study, are in hand in the form ¢ 
