NOTES. 783 
Rica, and the botanical results of his expedition have appeared in 
numerous papers in the Transactions of the Copenhagen Natural 
History Society, and in a series of memoirs on different natural 
orders, in conjunction with Bentham, Berg, Griesbach, and Plan- 
chon. In 1863 was commenced ‘‘L’Amérique Centrale” which 
; contains descriptions and figures of new tropical American plants. 
T Oersteď’s researches in fungi were important, especially his dem- 
onstration that Ræstelia is but a dimorphic condition of Podisoma, 
and his investigations into the organs of reproduction in Agaricus. 
‘He was appointed Professor in 1860.—Journal of Botany. 
A RARE opportunity is offered for those who want a collection 
of Californian Coleoptera, and insects of other orders. Mr. G. R. 
Crotch, late assistant librarian at Cambridge University, England, 
proposes to spend about a year on the Californian coast, going as 
far south as Guaymas, and then up to Vancouver Island. Mr. 
Crotch will make a specialty of Coleoptera, which will be named 
by Dr. Leconte, and made up into sets at ten dollars per one 
hundred species, two specimens being given whenever practicable. 
He is willing to collect other orders if wanted. 
We take pleasure in drawing attention to the Essex Institute 
course of eight lectures entitled ‘“‘ Eight evenings with the Micro- 
scope,” now in course of delivery in Salem, by Rev. E. C. Bolles. 
The subjects are “ With the Microscope Maker,” “ In the Labora- 
tory,” “In the Garden,” “ In the Forest,” By the Pondside and 
Seaside,” “Among the Insects,” ‘‘ With the Zoologist,” “ With the 
Polariscope and Spectroscope.” These subjects are most clearly, 
pleasantly and ably handled by the lecturer. The illustrations 
enlarged by the microscope and thrown upon a screen twenty-five 
feet in diameter, by aid ‘of two powerful calcium lanterns, are 
simply splendid, and we doubt if more finely illustrated lectures 
for a popular audience have ever before been presented in this or 
any other country. 
A xew society has been organized in Sacramento, California, 
‘under the name of the “Agassiz Institute,” with the following 
Officers: — Dr. T. M. Logan, President ; F. E. Potter, Recording 
Secretary ; Rev. J. H. C. Bonté, Corresponding Secretary. we 
are informed that the new society has been formed on the model 
f the Essex Institute of Salem, and that it owes its birth in great 
part to the recent visit of Prof. Agassiz, after whom it is named. 
