708 General Notes. [July, 
genera—Macherodus, Mastodon, Leptobos, Palzeoryx and Palæ- 
oreas—are extinct. iocene mammals, but little altered, yet 
occur in the Sunda islands; the Anoa is close to the Siwalik 
Hemibos, Bos etruscus is a Bibos, close to the Banting of Java, 
the Pliocene stags, tapirs and rhinoceroses are nearly repeated by 
the forms now living in Southeastern Asia, and Sus verrucosus of 
Java is close to the Pliocene Sus giganteus. Professor Boyd 
Dawkins believes that two of the deer of the Pliocene of the Val 
d'Arno, as also the Hippopotamus, are identical with existing 
species, A before unknown deposit of Pliocene age at St. 
Erth’s, near the Land’s End, Cornwall, has yielded fifty species 
of mollusks, of which all but eleven or twelve are extinct. 
MINERALOGY AND PETROGRAPHY.! 
New Minerats.— Ist. Bertrandite—This mineral, mentioned 
by Bertrand in 1880 (Bul. soc. min. d. Fr., 11, 96) as a probably 
new aluminum-silicate from Barbin, near Nantes, is shown by ` 
Damour? to have the composition 4BeO, 2Si0,, H,O, on which 
account he proposes for it the above name. It occurs in druses of 
a coarse pegmatite. Its system of crystallization is orthorhom- 
bic; axial ratio a:b:c=0.5619:1: 0.5871. Observed planes 
OP, wP, 0 PE oo 3 oP, kes] 3, X oo 
optical axes is œ P 4. Principal bisectrix is 4. Dispersion p < v? 
2d. Evigtokite is a name applied by Flight! to a mineral of the 
cryolite group from Greenland having the composition CaF, 
AIF;, H,O. It is composed of masses of minute, white, trans- 
parent crystals, 
in structure, of a white color or with a greenish or bluish tinge. 
Its composition is (Al, Fe) AsO,, 8H.O. Analysis : 
Fe,O, ALO, As,O, SO, CuO CaO H,O 
7-64 28.229 26.962 I.1IT 1.027 0.719 34.053 
4th. Pinnoite is a new borate from Stassfurt described by H. 
Staute.” Its crystal form could not be determined. Sp. gr. 2.27. 
Hardness 3-4. Its composition is: 
| “MgO B,O, H,O Fe Cl 
24.45 42.50 32.85 0.15 0.18 
which gives the formula MgB, O, + 3H,O. 
_ "Edited by Dr. Gro. H. WiLt1aMs, of the Johns Hopkins University, Baltimore. 
Bull. soc. min, de Fr., v1, 1883, p. 252. 
_ SIb., p. 249. 
“Journal Chem, Soc., Vol. 43, March, 1883, p. 140. 
: Š Berichte der deutschen chemischen Gesellschaft, xvii, No. 12, p. 1584, July, 
