1891.] 
Mastodon angustidens, 823. 
Mechanical Origin of Structure in 
Pelecypods, R. T. = ckson, 11. 
Medullated Nerve-Fibres, 
Melanophlogite, 827. 
Melitta cucurbitae, 924. 
Melursus labiatus, 260. 
Menhaden, 1020. 
iscoëssus, 602. 
conquistus Cope, 598. 
Merniscotheriidae and Chalicotherioidea, 
Menodus eubiricentic Leidy, 47. 
peltoceras, 48. 
platyceras, 48. 
Men = rT 766. 
Meri labradorius, 742. 
i REN damonti, 278. 
Mesozoic = Fauna in New South 
He. s, 652. 
Mammalia, “0. C.M 
oaa News, 278, ord chs. 738, 822, 
Metacinnabarite, 661, 1006 
Metam n Hex apods, 
Metamorphic ze aeeie mache of 
tiie. af Murootisiók Hydroids, ete., 
Methods for rks Preservation of Pelagie 
183. 
ries of Rendering Shag Nemer- 
ean Eggs T nt, 398. 
Mex xian Civilization, 9 33. 
Mexica: rizona Plants of 1890, 
mer, 1013. 
Rarer 503. 
Microscopy, | 85, 183, 397, 846, 1142. 
Mic of calcareous oölites 
serie aed 
Migrations Faded Prehistoric Peoples, 
Mika. Operation, 593. 
Miller : Description of a New 
‘Jumping Mouse from Nava 
Scotia and Labrador, 742. 
and Dalowainlney 729. 
‘Mindoro, 1041. 
Mineralogy, 577. 
Mines and Workshops of Flint, 1032. 
Mineralogical s, 660, 827, 1006. 
Tables, P. Pue 14. 
Mineralogy and Petrography, 138, 367, 
Mineral Syntheses 142. 
Mioplosus 
p 
Mixtec and Mije, 504. 
Mocquard, M. F. Recent Researches 
, 657. 
Index. 
xvii 
in the Herpetology of Africa, 
Moll, A. On Hypnotism, 170. 
Molluscs, 55 
Mollusks, aea of, 1016. 
; oea cd 
aan eed Larval Form 
tt il 1185. 
Notes on the Breedin ng 
Habits and Embryology of 
Frogs, 
Wilson’s Embryology of the Sea 
ass, 1020. 
Morphological Notes from the Labora 
tory of Johns Hopkins Univer- 
sity, 
Morphology of the Avian n Brain, 900. 
of the Bilateral Ciliated Bands of 
the Echinoderm Larvæ, 382. 
of the Fungi, J. E. Humphrey, 
of the Siphonophores, 664 
and Systematic of Birds, 727. 
of the Vertebrate Head, J. B. 
tt, F 
Morris, C. Civilization, a Historical 
Review of its Elements, 730. 
The A Race $ 
Mortuary Custom of the Navajo 
Indians, R. v. Nag felit, 303. 
Motion. in the 664. 
tion, 395. 
Murtfeldt, M. E. , Papers by, 295. 
Muscle Growth, 185. 
Mutual relations of Land Elevation and 
sci spss umulation Period, 482. 
dur rniran Period, 482. 
Mycological Literature, 151. 
Myloleucus formosus, 359. 
Ne ee ie Academy of Sciences, 
1144 
National P Parks, 470, 
Beni 4 of Analogy, J. Jas- 
w, 929. 
Natoral i Selente Association of Staten 
sland, A 
Nebraska Academy of Sciences, 187. 
Nebela collaris, Leidy, 1073. 
barbata, 1073. 
longicollis, 1073. 
Nematode Leaf Disease. 925. 
Nemopanthes 852. 
canadensis, 
Neo-Darwinism and POO TANTE, 
Neopla giaulax i oine, 600. 
Nerves of Tortoise OHM 281. 
