AMERICAN 
ATURALIS 
A MONTHLY JOURNAL 
DEVOTED. TO THE NATURAL SCIENCES 
IN THEIR WIDEST SENSE. 
MANAGING EDIT 
Prors. E. D. COPE, TRS, aid rs KINGSLEY, Boston. 
‘ ASSOCIATE hig peta 
Dë O. WHITMAN, Chicago, Dn. C. E. BESSEY, Lincoln, Neb., THOMAS WILSON, Washington, 
Pror. C. M. WEED, Hanover, N. H., Pror. W.S: ARA. ‘Wat erville, Maine; Pror, E. A. ANDREWS, Baltimore, 
. . N. LOCKINGTON, Rugby, England. 
‘ Vol. XXVII. APRIL, 1893. ` No. 316- 
CONTENTS. 
THE RELATIONSHIPS ND DISTRIBUTION OF THE —Isomo 
NORT ERICAN UNI Mouar WITH NOTES eenitab praia nn 
> <ON nie wie COAST SPECIE 
= PAGE. PAGE. 
' THE GENEALOGY OF MAN. E DA New Rock Type, A stray aaa Petrography of — 
z D. Cope. 32 ey ae = pan—Two Peculiar Rocks from Siberia ~ 
THE PROBABLE Eo OF me CRETA- | —An Ottrelite Basie parc AETS in Vermont— 
_ CEOUS PLANT POPULATI | Lithapbiyes in the Rocche-Rosse—The Composi- ~~ 
Conway Ma: Millan: 336 | tion of the Dune San ot ie Netherlands—Quartz- | 
N EXTREME CASE OF PARASIT abbro in Maryland—Minerals from = i 
Robe ey ee . B., M. D. 346 | Fields <i ineralogic kako 
| Anomali ism—Etched Figures Micro os 
; i Zoology. —The German Zoological Spey Bees 
as. T. Simpson. 333 | of Polychzets —Arachnida—The Fishes a e 
“ORIALS.— Book Publication iy in t America The Pacific Coast of America North Ce 
eee or DONE A eee e: Kew On the Mechanical G 
ah EEE 359 —The Systematic Position of the Kiwi— Mammals. En 
-361 | from the Galapagos Islands. . . ee gee 
Ch E Da Macmillan’s rae re sre ager Tm Eggs El lectricity ond 
rmz of the Minnesota ereiaro on eavage—Membranes of the Sea Urchin ae 
omy of the Humming-Birds and. Experiment on Clea iy : 
Rejoinder — Beddard’s Animal Ento Te 
l ology.— rmitophilows fname on < 
sn O ERTS, wie - 364 | the Mouth Parts and Thorax of Insects and Chilo- 
-TI liy- Alder “Aph ted) — 
Geology i lee — Currents o the “Not er se pis he Tine : A pis (stated) — 
zeaspis America hë Pi 
he Elgin Saisone Foai Reptiles Grand ae pata ae of Biepharipeea, 
the atic Position of the espe Gon. oF t oie Probl 
m nodon —The Brown ( Co oal and Lignite in aan py- cupe 
=i Paenk 75 | PROCEEDINGS OF SCIENTIFI ETIES. — 
f er Prregrapiy.—Dessipion of the [ Scitinid News a ee 
PHILADELPHIA, us i 
BINDER & KELLY, 
518 AND 520 MINOR $ STREET. 
