ADVERTISEMENTS. 
Words; their Use and Abuse. By Wm. Marnews, LL.D. Twentieth 
edition, aia’ Sina 504 Hp Reuse price, $2. 00; with the GEOL- 
OGIST for 189 
Men, Places and Things. M. MaTHEws, LL.D. Third edition, 1 
vol., 12mo., 394 pp. So en price, $1.50; with the Gro.oeist for 
1891, $3.75. 
pisn We en Geology? By ALEXANDER WINCHELL, LL.D. Should 
y all teachers and those interested in educational matters. 
cng etl Regular price, $1.00; with the GroLogisr for 1891, 
$3.50. 
a, satiated complete set in twelve volumes; with the GEOLOGIST 
Mammoth Cpolspaata, in Sars manne 2176 pp., 620 illustrations; with 
OLOGIST for 1, $4.00 
bi iad Precious Bii of No orth America, By Groner F. Kunz, 
Large quarto, pp. 336, 8 colored plates and numerous minor engray- 
ings, open gilt. Regular price, $10.00; with the Gro.oeisr for 
1891, 
The Metallurgy. of Steel. By Henry M. Howe. “A notable con.ribu- 
tion to the literature of iron and steel pea urgy.” Royal quarto, 
425 pp., cloth, gilt, rk: om Regular price, $10.00; 
with the GEOLOGIST for j 
Modern American Methods r Copper sak Iting. By Dr. E. D 
Second edition, large 8vo. oh ms PP... illustrated. Regular orien ek M. 00; 
with the GEOLOGIST for 1 1, $6.00 
the United States, and those of Great Britain and Prussia, never 
before collected in depoapetiee form. Large 8vo., pp.420, cloth. Reg- 
ular price, $4.00; with the GEoLoGIsT for 1891, $6.00. 
America Not Discovered by Columbus. A historical sketch of the dis 
covery of America by the Norsemen in the tenth century. R. 
NDERSON, A. M. 3d edition enlarged, age cloth. Regular price, 
$1.00; with the GEoLoeIst for 1 1891, $3.7. a 
Geology, Chemical, Physical and dtratigres bicai. By JOSEPH PRES 
wea, M. A; F. R.S, F.G.S. In two Ea si with illustrations, 
Vol. I, Chem Physical. Vol. II, Stra phi and 
Regular Bale for both volumes, $15. 25. With the GsoLootst 
for A801, ae [See the advertisement of Macmillan & Co. in t 
st.] 
Bien’s Atlas of the tan District and Adjacent Country, Unri 
valled as a nae Page: of the mapan sart. Just published. Scale, 
two inches to the mile. Sheets are 23 Š be inches, the atlas being 
173 x 23 Aata Regular price, $20. h the GEoLoGIsT for 1891, 
$20. [See advertisement of Julius Bien ne Co. in the GEOLOGIST. ] 
For these premiums money must be sent in advance, and in 
- by postal order or note, or by express or draft on New 
‘AN GEOLOGIST, 
ee THE AMERICAN GEOLOGIST, iy 
