Micra cage intelligence. 
the New Yo 
a rasa aneannauesins 
CONTENTS. 
age 
Art. XL.—Remarks on Professor Newcomb’s “ Rejoinder ;” 
BS ot COU ages es ee eS 343 
XLE—An interesting eeney ev sce and other Min- 
erals ; by VE. i toe RRR a ny hee Os Ace ee 349 
XLIL.—Notés on American aaieaaakes: No. 13; by-C. G. 
POUCE WOOK: CRA ie oe i eo Le el 358 
ALI, -Phemnoueter Exposure; by H. Hazen = 365 
XLIYV. mare tks of angular Gravel jeik pecan Str atifi- 
cation; by T..C. CuPenbiiing acc eu. eee 378 
XLV.—Extinet penton ve the San Juan Mountains, Colo- 
wae ti to Ree et ae i ee ea re 391 
XLVL ae of Raines of Varieties; by A. Gray, .---- 396 
XLVIil.—Secondary Enlargements of Weldon | fragment in 
certain Keweenawan sandstones ; by C. A. Vanuise,. --' 299 
XLVI. — Principal Characters of American Cai aeows 
pps tls Part IL. The Skull of Pteranodon; by 
. C. Marsu. CW Mi Pints AV) oe kote ee ADE 
SCIENTIFIC INTELLIGENCE. 
Chemistry and Physics.—On oe rai iy, a Berraecor, 403.—On the Hypo- 
nitriles. Divers and H Fert and colloidal Ferric hydrate, 
GRIMAUX, 405, —Synthesis. ‘of Piperi ridin nf its Homologues, LADENBURG : 
Vacuum regu lator for ay Distillations, GopEFROY, 406.—New Tempera- 
ture-regulator, L, Meyer, 407. 
Geolegy and eRe ony. Geology of the nieowad Creek Basin or eastern end of 
the Southern field, C. A. ASHBuRNER, 407.—Geological Survey of New Jer se 
Report for 1883, G. Hf cla 08 Auaepeagec ort ilobites, J. MICKLEBOROUG 
©. D. Waeorr, 409.—Glacial Boundary in Ohio, Indiana and - Lenrnek y, ro 
F. Wrigut: — on ay het ogy aiid 8 x oe History of Canada for 1 Bs Q- 
81-82, A, LW ea : Serer a Ter ary Floras of British ae 
and the No Peat Ter ate a vew mineral, Damour and 
SERTRAND : Pah ore (Cassterite) in ae Bine Ridge in Virginia: Meneghinite 
ip Tennanite. from Canada, —Materialien = eo oe Russland, von 
> angel : Allanite fom Toe, Maine, F. C. Ropiyson: Cupro- 
Senciriatic from Mexico, 4 
Botany and Zoology —B kin of the Sa lee alos of a ae ate 
Darwiuism stated by Darwin himself, N. : Wild Flowers of A 
yt. aoa and G. L Goopa ALE, 414 sosipiess ae of the Native and aus nF 
ized Plants of the City of Buffalo ~~ Vie icinity, D. F. Day: Die Pflanzenkrank- 
heiten, B. FR RANK, 415.—Researches on the Structure of Diatomacese, W. PRINZ 
and E Van iricercne 416.— Report of the K ist, € 
of Dredging under A; Agassiz in the lake :” Report on the Isopoda, VU. 
Hacer: Se aig spt of the Surface Fauna of the Gulf Stream, A. AGASSIZ: 
— m Erabry eg a Monographs: Cruise of the Revenue Steamer 
Corwin it hadi and the N. W. Arctic Ocean, in 1881, 417. 
—National Academy or Sciences. 417.—Report 
k. State Survey, J. T. GARDINER, 418.—Note ae a eondition 
sioning the Ohio River flood of February, 1884, J. D. Dawa, —Publica- 
tions of the Cincinnati Observatory, No. 7: logical Sexe "ot London : 
Hermunn Mueller Fund; 421.-—Rainfall returns: Monnaie to Barrande, 422, 
i Obituary. —QUINTINO SELLA, 422. 
