: 412 Scientific Intelligence. 
Nerocyanite. A recent sublimation product at Vesuvius, in 
composition essentially an anhydrous silicate of copper. It occurs 
in minute crystals of an azure blue color. Described by Scacchi; 
— Accad. Se. Napoli, Dec. 4, 1880. 
Analysis of Columbit ite ; by E . J. Hattock, Ph.D. (Com- 
ote, \'The sample analyzed was from Middleto wn, Conn., 
and was kindly furnished to the writer by Professor Charles A. 
oy. The aoe Sable of the crystals freed from gangue was 
found to be 6°1 wo analyses afforded :— 
L IL, 
Mixed acids 82°64 82°56 
Tron protoxide 1177 12°08 
Man ganese | protoxide 4°95 4°93 
Lime 0°50 0°45 
The columbic and tantalic acids were not separated, i the 
specific gravity of the ignited mixed acids from No. 2 was 7°48, 
eriarten a large proportion of tantalic arp 
rm Medical College, Atlanta, Ga., Feb., 188 
ants Botany anp Zoouoey. 
Brunt HAM, F.R.S.—Tw notable papers extracted Sant the (still 
unpublished) eeperraraiet volume of the Journal of the Linnean 
Society, and i ant as forerunners, being a sketch of the ar- 
rangement adopted for these orders in the forthcoming and con- 
cluding portion of the Genera Plantarum, and Shere also 
occupies the pages of the volume from 281 to 360, and is a suc- 
cinct exposition of a complete re-arrangement of "this vast and 
mors order, as to oon tribes, eee and the limitation of 
many genera. That on the Oyperacec, pp. 3 oe is compara- 
structure. The genera are grouped under two ptinelpal divisions 
(after Beckler), each containing three tribes. The history of 
some of the early genera, and of the way they have been mis- 
taken or confused, forms a curious part of Mr. Rewehian’ 8 biatcigg 
2. On - ops tg | Histology of on Seedling of Wel- 
patton sf gt B.A.,Camb. Reprinted from the 
Quarterly fiir ‘of Pr iciososhiéal Science, n. ser. xxi, pp. 15-22, 
with two plates.—We have had the pleasure of snepeeine from 
through the winter and are still thriving, although the larger 
portion was lost. This paper by a promising phytotomist inves- 
