Fe 
ADVERTISEMENTS. 
Words; phate Use and Abuse. By Wm. Matuews, LL.D. Twentieth 
ajet arta 504 pp. Regular price, $2.00; with the GEOL- 
peng ie 
Men, Places ee mings. By Wm. Matuews, LL. D. Third edition, 1 
vol., 12mo., 394 pp. - Regular price, $1.50; with the GEOLOGIST for 
1891, $3.75 
Shall ae = peg Epea Fe By ALEXANDER WINCHELL, LL.D. Should 
teachers and those interested in educational matters. 
1mo., E Regular price, $1.00; with the GEoLoGIsT for 1891, 
Dickens ‘Works; Bagi pe set in twelve volumes; with the GEOLOGIST 
r 1891, 
Mammoth Oyo KEA TA a Rai a 2176 pp., 620 illustrations; with 
e GEOLOGIST for ; $4.0 
o and Precious Stones’ of Hati America, By GEORGE F. Kunz. 
Large quarto, pp. 336, 8 colored plates and numerous isor engrav- 
ings, cloth, gilt. eraik price, $10.00; with the GEOLOGIST for 
1891, $11.00. 
The Metallur urgy of Steel. pi eames M. Ho nine A notable conau 
tion to the literature of iron and steel metallurgy.” Royal quarto, 
425 pp., cloth, gilt, profusely illustrated. Regular price, $10.00; 
with the GEOLOGIST for 189 -00. 
Solim American Methods "s Copper Smelting. r. E. D. P 
econd edition, large 8v , illustrated. pp meim price, "$4. 00; 
ae the GroLoaist for Soa, “96. 00. 
sagan Accidents and their Prevention. By SIR FREDERICK A. ABET 
i 
ith the laws governing coal mining in every state M: territory in 
the United States, and those of Great apma and Prussia, never 
before collected _in sibie form. Large 8vo., pp- Si pan th. Reg- 
ular price, $4.00; with the GEOLOGIST “sei 1891, "$6.0 
America Not Discovered by Columbus. A historical bed of the dis- 
covery of America by the npa in the tenth century. THE B 
NDERSON, edition enlarged, 12mo., cloth. Harale. price, 
$1.00; with the GEOLOGIST for 1891, $3. 75. 
Geology, rg i ERE and Stratigraphical. By Jose 
n tw 
H PREST- 
volumes, with areen 
Vol. Ly Chemie al and Laas AOL i Stratigraphical and 
ical. Regular price for both v olum mes, $15 5.25. With the ig ree 
eon Sie $15.50. [See the advertisement of Macmillan & Co. in the 
E 
Bien’s Atlas of the Metropolitan District and Adjacent Co untry. Unri 
valled as a Len of the map-maker’s.art. Just published. Sesto, 
two inches to the mile. Sheets are 23 x 35 inches, the atlas being 
aac x 23 inches. Regular price, $20. With the ert Ga for 1891, 
e advertisement of Julius Bien & Co., in the GEOLOGIS a 
k these premiums money must be sent in advance, and in 
i cases by postal order or note, or by express or draft on New 
ork 
For public libraries this affords a rare opportunity to proc 
these standard works at reduced prices. We desire to extend the 
GEoLoaist to all scientific libraries and laboratories. Our sub- 
scription list is steadily increasing, and with the year 1891, which 
emorable in the history of American geology, because of 
the Recetas session of the International Congress of Geologists, 
we expect to see it doubled. We hope our old subscribers, to 
whom we acknowledge our obligation for numerous favors, will 
call attention to these offers for 1891. _ 
THE AMERICAN Ss 
SEPT. 18, 1890, , MINN. 
