
558 PROCEEDINGS OF SCIENTIFIC SOCIETIES. 
twice the strength above mentioned — the saturated solution — the speci- 
e 
solution, and preventing endosmosis. Fluids once used will be found to 
have lost their preservative power in a considerable degree far more than 
in the case of alcohol, and must be strengthened before being used again. 
museum rooms are ordinarily subject in this country. If the smell of the 
carbolic acid, which is very slight in the weak solutions, should be 
objected to, the addition of a minute quantity of the oil of wintergreen 
y 
filling up old specimen jars from which the alcohol has nearly evaporated. 
All germs of mold are instantly killed, and the specimen needs no 0 
preservative. f 
The experiments mentioned above were to be continued, with the view 
of ascertaining whether the solution was equally reliable for a longer 
period. 
Specimens were exhibited illustrating the preservative qualities of the 
id. 
Dr. Stimpson also made some remarks upon the shell-mounds of West 
Florida, particularly those of Tampa Bay, which he had examined during 
the past winter and spring. These mounds were of gréat extent, some 
bodies many acres of ground, and = aching a height of forty or any : 
feet. Some of them were distinctly stratified, which characteristic has 
probably misled the only scientific ds who has as yet mentioned 
.. them, and caused them to be regarded as of natural formation. 







. * Conrad, American Journal of Science, [2] I, 1846. () p. 44 
SA pes gl mals cu A aE 
E. 




