CONTENTS OF VOLUME XXI. 
—__— +++ —__ 
NUMBER CXXI. 
Plates LI IL SRI 2a saith cernisdy elie ans 
ee Albany Granite, New Hampshire, and its Pacahet 
omena; by Grorex W. AWES, iia ties hE st 21 
11 —Theors of the Constitution of the Sun; ; ‘by Cains 8. 
ASTINGS, 
IV.—Review of Professor Hall’s recently published kena 
on the Devonian fossils of New York; by Cu. Barrots, 44 
V.—Karthquake at the Philippine Islands, of July, 1880, 
CGE NA 660 Lee iach we'd: 4-4-5 g 52 
1. ore ers on Thermometry from the Winchester Observa- 
tory of Yaie College; by Leonarp Watupo,..--------- 57 
IL—James Crate Watson Mie KE cAepisibn spietts 280 SRE ae OM 
SCIENTIFIC INTELLIGENCE. 
Chemistry and Physics.—Existeuce of Ozone in the Atmosphere, SCHONE: 
ature 0 
maa Luy@e and STeINKAULER, 68.— Biyer’s Synthesis of Indigotin, RosEN- 
HL, 69.—Isopropylene-neurine, MoRLEY: Investigation of Dr. BR RUHL onthe 
ieee Structure of Organic Compounds, 70, -Ghemivel pry. 8 and 
motive force of different galvanic slemndeit THOMSEN : Spectra of the compounds 
of Carbon with Hydrogen bi Nitrogen , Liverne aot a —_ 1, —Behavior of 
gases under the influence of electrical disch arges. Theoretical is 
practical treatise on the rch tae of Sulphuric hofie-raren and @ Alkali, Lounge, 75. 
Geology and Natural History. shale on alleged changes in wi sergennk bagi . < 
in the = 
of Land and Sea, H. MircHetn, 77.—Further discove of f 
Wanner Valley or Ba bench t limestone, W. B. Dear. The Vokaule deste 
i NeEw- 
BERRY: Descartes Yun des Créateurs de la Cosmologie et de la Géologie. M. Gen 
Minerals, H. C. Bouton, 80.— Proceedings of the Academy of Natural Sciences _ 
of ss Crenophors C. aly, 81.—The Spiral Character of Coelenterate _ 
Develo: i d.¥ : Ameri n Ornithological Bibliography, E, Cours, 83. 
Miscellaneous em acco ee incidental results from a series of 
analyses of air, E. W. Mor —National Academy of se ences: Annual | 
Report of the Chief of _tnincers to to the Secretary of War, 84.— Report on 
Meteorology of Tokio, T. C. MeNDENHALL: Report of the Gates States ‘Com 
missioner of Fish and ‘Fisheries, S. F. Barrp, 85.— Sutgen’s iples 
mi . DuBors: The American Naturalist Monk Konet City ee 
Review of Science Industry, T. 8. Case: Medals of. aie ned ys 
Physical Treatise on S Wconions and Magnetism, J. E. H. Gorpo, 36. 
Obituary. —Benjamin ©. Brodie: J. Charles Almeida: Michel Chasles, 86, 
