108 
NEWS AND SUNDRIES. 
and circumstance which is likely to throw light upon, or ac¬ 
count for any peculiarity. The slides are for comparison as 
to the condition of capillary circulation, the young with the 
old, and should be in numbered pairs, or groups from the 
same kind of tissue. The term tissue is used in a general 
sense, e. g., pulmonary tissue, hepatic tissue, renal tissue, os¬ 
seous tissue, muscular tissue, nerve tissue, alimentary tissue, 
etc. 
No particular schedule of methods for injection, or stain¬ 
ing, will be insisted upon, and no more definite directions, or 
explanations will be given. 
The slides, carefully packed and boxed, together with de¬ 
scriptive manuscript, can be sent by mail. 
It is stipulated that the demonstrations which receive the 
prizes shall become the property of the subscriber, for pub¬ 
lication. All others will be returned, if desired. 
No pseudonyms required. Accompany slides in every 
case, with (real) name and address. Unless of known repu¬ 
tation as a biologist, a reference is respectfully solicited. 
Reservation: no award will be made unless work of at 
least ordinary merit is submitted. 
This offer is made on the first day of January, 1890, and 
will remain open until the twentieth day of August, 1890. 
Slides and manuscript will be examined and receipted for 
as soon as received. 
The prizes will be adjudged on the first day of October, 
1890. 
These nominal prizes are offered less in expectation of re¬ 
sult from the money as an agent, than in the hope that the 
offer may furnish a point cCappni for really needed work. Be¬ 
sides professional observers and students, there are in the 
United States a large number of amateur microscopists of 
acute vision and undoubted talent, who are at present playing 
with microscopes, as with toys, merely to see curious or pretty 
things. The time has come to concentrate observation upon 
the one proper object of biology, viz., the renovation and pro¬ 
longation of human life. Address C. A, Stephens’ Laboratory, 
Norway Lake, Maine. 
