vili CONTENTS. 
NUMBER LIV. 
Page 
Art. XLITII.—Results of Dredging Expeditions off the New 
En = nd Coast in 1874; by A. _E, oe WL Speese ced 4 411 
in the Sun not Sat ag traced ; - J. N. Locxyr oe 429 
LV1L—On the occurrence of the Brown “saan Deposits 
of the Great Valley; by Freprrick Prime, Jr. 
XLVII.—Stratification of the Primordial and Cuma taes Rocks 
of South Central Wisconsin; by Rotanp Irvrne,.-_--- 440 
XLVIII.—On the application of the Horivontel Pendulum to 
the measurement of minute changes in the dimensions of 
Solid Bodies ; 00 4 
G . LLAWES, . . 454 
L.—Re-discovery of the double Star H I. 41; 8. W. Bu URNHAM, 457 
LIL.—On the Distribution = — = Discharges from Cir- 
cular Deees byt. 0 ie oo ee oe oe 458 
LIL. < Preliminary Note on an » aiminaton of Gases from the 
M of Feb. 12, 1875; by Arraur W. Wricut,.. 459 
On, ‘Lononite: by J. W. Mate Mii eica sects tees 460 
arts vs SCIENTIFIC » INTELLIGENCE. 
anaes and Physies.—On the Composition of the so-called ken 9 of Shims 
Gér 461.—On the. Constitution of Ammonium Compounds, Meyer and 
Lecco: On a aldehyde and andy formate, Pennhen. 462. 0 Semiaalael 
of Bie Tragacanth, GiRAUD: © Occurrence of Cane Sugar in Malted 
MEYER and HER: Viscosity of oe OBERMAYER, 465.—Specific Heat of 
Carbon, Boron and Silicon, WEBER, 466.—Action . ere Currents on Alloys, 
‘Opacu: New Property 0 of Aluminum, DucRETET, 
Geology and Natural History.—The Surface aay oe Ohio, by J. 8. NewBEerRY, 
468.—Prototaxites of, Dr. Dawson, a genus related to the Taxinex, 469,—Fossil 
Vertebra — of vane tap and Tert rtiary affinities in the sa: 088 ee on the Sas- 
katchewan: Systema S Oeiaio ogue of Vertebrata of the Eocene of New Mexico: 
Piddibese °o on the Platiniforous rocks of the Urals, eaege The Geological Story 
br bei told, an Mess erie to Geology for the General Reader and for Begin- 
rs in the e, by JAmMEs D. Dana: Catalogue cor petit, pada Fossils of 
the Pegrimenein Group by U. P. James: Limonites of 
nn., by PERSIFOR FRazeER, Jr.: Bentham , Revision of ag Suborder Mim 
> 
ana ; . 
Parasitic Worms, by Dr. Levy, 8.—Jahresberi cht der Commission zur wiss. 
Unters: der deutschen Meere in Kiel, 479. ~—Illustrated Catalogue of the Museum 
of Comparative Zoology, by TuzopoRE LymMAN: The Elements aa Embryology, 
by Fosrer and Batrour: Nature and Life, oy FERNALD RAPPILLON, 480. 
Miscellaneous Scientific Mahissece,Crn Ancient a in ‘Kentucky e 
F. W. Putnam, 480.—The catastrophe of-the Zen wreaths ——Proteacti otracting § 
-Mean Height of Kurope: Smithsonian tery tae : oe for =the 
-Geological and Geographical Survey of the Terre bg 1875, 482,—Nation 
Academy of Sciences: Mastodon of Otisville, Ora =e Count, N, Y., 488 
Statistical Atlas of the United States, by FRANCIS AW Popular seten ce 
Library: New York Academy of Sciences: Geological Society of London, 484. 
ERRATUM.—Page 48, 19 1. from foot, for 63’7"1 read 64/1, 
