192 EXCHANGES. p 
we trust he will receive every encouragement. At any rate many — 
interesting and rare Californian species will be figured, which will — 
make the work of much value to students. | 
Tue second edition of the “Guide to the Study of Insects” 
having been exhausted, a new and improved edition will appear 
late this month. Several new plates and cuts will be added, 
and an appendix, bringing the work down to the latest date. The 
price will be reduced to five dollars. 
A Narurar History Society is flourishing at Natick, kau 
is now growing rapidly, having a membership of seventy. Its mr 
seum is gaining accessions, and already needs more room for cases 
Ir is proposed to add a department of Science to the Executive : 
Branch of the Government. It is to be composed of the Storm — 
Signal Corps of the army, the Lighthouse Board, and the Coast : 
Survey Bureau of the Treasury, and the Hydrographic Bureatt of - 
the Navy. 
A COMMUNICATION to the Corporation of Brown University ¥ 
recently presented from Colonel Stephen T. Olney, making & mi- 
nificent offer of his herbarium and books on botany, ON condition 
that a suitable building should be provided. for their reception. 
It was referred to a committee. 
Dr. W. Stimpson writes us from Key West, iris 
date of January 15, “To-morrow I leave here 1 the v- i 
Steamer, “ Bibb” Capt. Robert Platt, to run a series ‘i se : 
between Cape St. Antonio (Cuba) and Cape Catoche (Yucsey 
and I „ticipate most interesting results, as Capt. Platt has 
three years’ experience in deep sea dredging with Pourtales: 
_ expect to get into two thousand fathoms at least.” 
wl 
$ 
$ 
we 
EXCHANGES. ui 
f mout 
ical microscopic objects (mounted) also herbarium aanre & 
and sea-shore plants, desired in exchange for U. S. herbarium specime 
JESUP, Amherst, Mass. poe air 
terial, fossil or recent, desired in exchange bs ; 
ides tro Western localities —H. H. BABCOCK, 11 18th St., Chicago, ne s 
Azolla and other Hydropterides Qiviag re desired in ie inci 
water alge or mounted microscopic objects.—T. D. BISCOE, 321 George 
ey 
for 
Mioi oscopic Fungi, mounted or unmounted, desired in exch a y 
slides or herbarium specimens.— C. E. HANAMAN, 103 First St., Trey: * 
