80 Scientific Intelligence. 
eral occurs in imperfect prismatic crystals on quartz; the specific 
gravity was 6°230.— Proc. Ac. Nat. Sc. Philad., p. 281, 1886. 
14, Stivenite, an alum from Chili.—Dr. Darapsky has recently 
described a series of Chilian alums derived from the abandoned 
mine Alcaparrosa near Copiapo. One of these occurred in slender 
acicular crystals, 2 or 3 inches in length. An analysis yielded: 
SO; AlzOs MgO Nas K20 HO 
(2) S621 << ATG EO 10" ahr eerie 
This corresponds to (Na,, Mg)SO,+Al,8,0,,+24H,O. To this 
alum the name Stiivenite is given after the mining engineer 
Enrique Stiiven. The paper from which this is taken closes with 
a discussion of the mutual relations of the numerous species, 
hydrous sulphates of alumina with potash, soda, magnesia, lime, 
manganese, zinc and iron.— Verhandl. wissensch. Vereins Santiago, 
p. 105, 1886. 
15. An artificial crystallized Silico-carbonate.—RAMMELSBERG, 
who some years ago described crystals of gay-lussite obtained 
from soda lye at the chemical manufactory of Dr, Reidemeister 
at Schonebeck, has recently given an account of a silico-carbonate 
of alumina, lime and soda obtained from the same source. This 
is found in tabular crystals, which belong to the orthorhombic 
system. They yielded on analysis: 
SiO» CO2 AlsOs CaO Na;O H,0 
22°75 14°99 7°38 13°28 22°37 [19:23] = 100° 
This coresponds to a compound of the normal silicates and car- 
bonates of alumina, lime and soda or simply R(Si, C)O,+42 aq. 
This compound is particularly interesting because related to the 
natural silico-carbonate cancrinite. Rammelsberg suggests that 
the formula of cancrinite may be written 2R,(Si, C)O,+3R,(Si, 
C)O4, assuming that SiO, and CO, play the same role, as in the 
_artificial compound described. 
III. Botany AnD Zoouoey. 
1. Bulletin of the Congress of Botany and Horticulture at 
St. Petersburg.—The botanists and horticulturists held an inter- 
national congress at St. ‘Petersburg in May, 1884. The Bulletin 
du Congrés, printed in 1885, has now just reached us at the close 
of the year 1886. It is an imperial octavo volume of 335 pages, 
largely in French, partly in Russian and German, with one article 
in English. 
The latter is ‘Votes on the genus Lilium,” by H. T. Elwes, the 
author of the sumptuous Monograph of the Lilies (which was 
completed in 1880), and one of the two British delegates at the 
Congress. The article closes with a list of the Lilies at present 
known, 51 species, with principal synonyms and habitat. The 
only species added in these last few years are three by Brossier in 
the last volume of the Flora Orientalis, which may not hold good. 
Mr. Elwes doubts whether many more are to be expected, except 
