MINERALS--NEW ARRIVALS, 
A CONSIGNMENT FROM RUSSIA CONTAINS: ~ 
QUARTZ (AmeEtHyst) inclosing moving drops of carbonic 
acid, which disappear when the crystals are warmed om the 
hand, the phenomenon being due to the vaporization of the 
liquid at 31° OC. New and very rare! 
BLUE TOPAZ, YELLOW BERYL and GREEN TOUR- 
MALINE in superb crystals exhibiting perfect transparency ; 
some doubly terminated. 
LIBETHENITE, MALACHITE, CRYSTALLIZED 
PLATINUM, HEULANDITE, PTILOLITE, ETC. 
Dr. Foote’s frequent trips to Sicily have secured the finest 
stock of SULPHURS, CELESTITES, GYPSUMS, HAUER- 
ITES, MELANOPHLOGITES, SIMETITES, ARAGO- 
N ITES, ETC., ETC., that exists anywhere in the world. 
A recent shipment. secured by us contains the pick of all 
the best Swlphurs found during the past year. 
MILLERITE, in beautiful velveted plates, from the long 
_ abandoned Gap Mine. Rare, 50c¢. to $2.00. ; 
METACINNABARITE from Cal. 5c. to $1.00 for good 
specimens. 
CRYSTALLIZED WURTZITE from Missouri. 10¢. to 
50ce. each. 
ECDEMITE (new locality). 
Send for the “SEPTEMBER SUPPLEMENT? ” to our 
Mineral Catalogue. MAILED FREE. (A complete deserip- 
tion of the many rare and interesting things received by us 
during the past year. Illustrated by a splendid gee “ener 
ing ot Hot Springs Quartz). 
BOOKS.—Scientific and Medical. 
Catalogues on all subjects furnished free. In ordering 
please mention subjects in which you are interested. 
Boyle, Essay on Gems, 198 pp., 1672, cf., rare-.....-..._.-.-------- $3.50 © 
' Bristow, Glossary of Mineralogy, 467 pp. 475all; 1861- ee 2.00 
Dana, Volcanoes, with Facts from the Hawaiian Islands, 414 pp., 
16-pl. and-Map, 1890 (22225: 6 eee oe eee 3.50.5 
Dana, Pcolwey of the Wilkes Expedition, 756 pp. and folio Atlas of 
21 pl. oe Have ee es Ge ek Se ee ee 35.00 
Dana, psec and-Coral. Islands, 440 pp, pl==* =~. <<. =. eee 3.50 
Dana, System of Mineralogy, latest edition, TOWs sos. oe Re es 10.00 
Dana, System of Mineralogy, 5th ed.,..._.-.. .-.----=:-.- 7a. 3.00 
Dana, Manual of Mineralogy, new ___..-.----.---- oon 1.60 
Dana, Manual of Geology, 1875 ._---.- 222-2. 23 =. ee 2.00 
Erni, Mineralogy Simplified, 395 pp., 121 ill., 1885___..___-_..-._.- { Silvee 
Koninck and Dietz, Manual of Chemical ‘Analysis and Assayee 
for Iron, 210 Dp., HM 1S2 - 3. eRe ee 1.00 
LeConte, Compend of Geology, 187]. toe ee oe Bi) Reger 
Richards, Aluminium, 346 pp.; 1887 _- -- 2225s. 2) ee 2.25 
Streeter, ‘Precious Stones and Gems, 264 pp., 10 pl., 18ea pee '- OA SED 
Williams, Applied Geology, 391. pp.,; 18862_ 2552. eee 1.25 
Dr. A. E. FOOTE, 
1224-26-28 North Forty First ote 
PHILADELPHIA, PA, U. §. A. 
