iv Contents. 
PAGE 
Description of a New Species of Field Mouse from Dakota. (Jllustrated.) 
ee te i os aks Se kala exis yerccee ween see N 702 
Science Teaching in the Schouls. Wm. N. RICE .........+-+++se0+++ 765, 897 
Fi @ Avainat Weeds. B. D. HALSTED ... 6... 6s cece yes scesesasys 
The Derivation of Domestic Polled Cattle. (Illustrated. ). R. C. AULD.. 784 
History of Garden Vegetables. E. Lewis Wiha dee jf T TT N E 802 
On Certain Factors of Evolution. A. S. PACKARD. .......... cece veces 
Notes on the Fauna of the Islands of etando De: Noronha, (Illustrated.) 
a ia a en Be as a a ok hh aa se ree 
Values in np ogee of ae ae of Growth oo eer with Propo- 
sitions for a New Nomenclature. ALPHEUS HYATT. ... ....-..... 872 
The Poison Apparatus of the  Mosauito. 4 lustrated. ) GEO. MACLOSKIE. 884 
Something About Crabs. J: S. RImee.ey.. 60. 0.0. eri dee ee eae. 
The Pineal Eye in Layout Vertebrates ` Qitustrated. A E. D. ve Sh ates 914 
Cretaceous Floras of the Northwest Ter ies. WILLIAM DAWSON...... 953 
On the Influence of prai ooo on oie pi foe Habits of Aoi. 
and that * the Actions and Habits of Living Bodies, as Causes which 
Modify their Organization. J. B. P. A. LAMAROK.............. 960, 1054 
On os ee. Drift and Loess of a Portion of the North Central Basin of 
TE 972 
ee o 
rr 
and Ethnolo T13- Irrigation of the Arid Resin of the United 
States, 821— eteat of the Appropriation for a Zoological Garden at 
TURE.—Gray’s Elements of Botany 46—Karpinski’s Phy- 
sike-Geographischen Verbiiltnisse des europäischen Russlands, 48— 
ged am s Lake Age in Ohio, 152—Mr Lydekker’s Arrangement of the 
Mesozoic Mammalia, 232— See — on the Charadriidz, 236—Daw- 
son’s Geolowical History of Plan 335—Baur’s Mo rphogeny of the 
Carpus and Tarsus of the Vertebrata, 435—Claus's Zoolp ogy, 487—Three 
Cruises of the Blake, 516—The Seventh Volume of the Paleontology of 
a 
es 
logy, 1096—Microscopical Physi hy of Rock-mak n 
a iin 9 l Recent Books and Pampi ab, 152, 237, 337, 437 
BAG, 030, 716. J1 ncn tins's ss qhukeat hen baht r e tian eaeee ere 1007 
GEOGRAPHY AND Travers—Afriea : The Eastern Desert of Egypt, 58— 
e Raian Moeris, 58—Physical Geography of p pideei va Po, 58— 
ca “Doul s Aena Í in the Sahara, 158—Lieut. Wissmann’s Second 
rney Across Africa, 158—Lake Shirwa, 241—Sete Kama, 241— 
TIROA S enyan at 343—The Niger, 441—Derivation of the Name 
Congo , 442—Menge’s Journey South from Kassal 
negambia, 632—The 
Goldfields of the A hi 08 719—Kund and Tappenbeck’s ap aniaya 
to the Cameroon’, 720—Mossamedes and Benguela,721—British Basuto 
Land, 825—J. Thompson’s Travels in Morocco, 826—The German 
East African Possessions, 826—The French in ’ Senegambia. . Bo | 
