CONTESTS. i 
P. 
Arr. XLVIII.—Distribution and Origin of Drumlins; by 
We ee OANIB O ore Pu oe a eee ae 407 
XLIX. — Geological ‘Relations and Genesis of the Specular 
Tron-Ores of Santiago de Cuba; by J. P. Kimpatn, ..-. 416 
L.—A New Tantalite Locality ; ; by "OA. ScHAEFFER,....-. 430 i— 
LI.—Paleozoie Rocks of Central Texas; by ©. Ware coTT, 431 |§ 
LIL. Sr esau of Terrestrial Rotation for the Deflection 4 
treams; by £ MOR a So Po Se oan oe 434 
LIL. Lao Affinity ; “by J. W. Laneey, _ 437 
LIV. gh ele ced Modes’ of Occurrence of Gold in Brazil ; by 
_ 4 
ah aoa eee 
LV: a olesdiwuits, : naw i Pirate of Lime; by AW. J ACKSON, 447 
LVI.—Deecay of Qua artzyte, and the formation of sand, kaolin 
and ~ oyocemamae quatiz; by J.D. Dana. ooo. os ee 
SCIENTIFIC INTELLIGEN CE, 
ree oy ees Sean pits 
ee 
Ohenist age md Physics. —Cause 0 the een the ohebrvell electro- 
ae ooh a oe ttery bt src calculated from hersaeeieal data, CHAPE- 
fore “452. Col f Chemical Compounds as a = of the Atomic yo ‘ 
of their foceetnent Blements, CARNELLEY, oe ty eee ee greatly 
. diminished Pressure, ‘ 
- means-of Thiocarbamide, Ex ; 
— Amy! piascent and of Amylene on et, in a Alum: 
eu and ¢ OSSIN, 455. netic atin of the oo 
| Infra-red Emit ission-spectra of Metallic Vapors, H. Br 6Q 
nation of the Wav e-lengths of the principal lines and eae. in the Here | ' 
portion of ie Solar Spectrum, H. BEcQUEREL, 459.—The Strain connected — 
2 ery n and with the development of pert structure, F. RUTLEY, 461. 
Geology oad: sveding: —The Copper- rcks of e Superior, 
— Irvine, =o oe the erage pieces of the Hornblends: of the Crys. 
- talline J heck Northiw D. Irvine, 464.—Eerlin Archeo 
Ww. Di AMES : the pieaiely he J. S. Newperey, 465. —Some instances “of 
si ton oy mre M. E Wapsworts, 466,—S 
. : Joes, 488 ¥: re iericrmatte g 
‘Pennsylvasia and the United States : *Lithologieat § ‘ Studies, 
ac Cockroaches and ot iaaeti ap aare 
| ische Practicum, Pro: Seaumebuddn 416 iieen 
oe Ornithorhynchus: fa ‘iebion, 475.—Organisms in Ice se 476. 
Astronomy and Ao Dioiebie: made on the Expedition t to Carlin I: 
We. ies 401 ee form of Primary Base sp nr W. : 
scellaneous Scientific Intelligence —Extracts of a letter t 3 
it William Thomson's gh 
