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CONTENTS. 
P 
ART. De — Duration of Color Impressions upen the 
4. NICHOLS, Poca oe ks naa 243 
sa a ee ee ek a ae we ae ae ew te ie ee a ee a a ae ee 
XXXII —Paramonphosis of Pyroxene to Hornblende in 
BRGRS > DY roel. VV UAE, oo loos oa, 259 
XXXIV. OES thee ending SE 2 " great Synclinal in the 
Taconic Range; by J. D. Dana, With a map (Plate 
Cixv. —Supposed. gen in Pennsylvania south of the 
Terminal Mor b oe C. Lewis. With a map 
Texas; os Oe Maz NCE Sk Ea ene Ea. ea 285 
3 pel cXV IT. = SeanBapiste And Dumas; by J. P. Cooke, 289 
—New Meteorite; by I. R. Eastman, 299 
SCIENTIFIC INTELLIGENCE. 
int Saiciations —British Association, 300.—American : Asscolation, 303, 
“ Physi ea er Papers | read howe the Physical Section at the meeting of the ‘American | 
Association for the Adyancement of at Philadelphia, 307.—Magnetic ~ 
a. a Nanoniy D. E. Huenes, 309.—Report on the International _ 
E a High Explosives, M. Kiss 
Geology and Natural History — _Profssaer James Hall on the § + Hoghins River” | Ge 
age of the Taconic — 311.—Earthquakes of Ischia, 312.—Azoie System 
and its proposed Subdivisions, J. D. Wurryey a M. E. Wapsworrs, 313— | 
_ Thirteenth annual report on the Geology and Natural History of Indiana, J. 
- COLLETT, , 314,— ossils as a criterion of Geological equivalency, W. T. BLaN- 
J 3 U e 
2 of Minnesota, N. H. W : Tertiary (9 
: peer of the Eastern sr Southern United States: Development and Generic | 
of the Corals of the Carboniferous System of Scotland, J. THomson, _ 
von Ba 
3 Bu , K. W. vos GimBeL: Microscopie organisms in | 
the” Bowlder Clays of Chicago and vicinity, H. ‘ Rae and B. W. | 
THOMAS, 317.—International Geologieal Congress: Text-book of Descriptive — 
: Mineralogy, H. BaverMan: Herderite, A. Wass 32 er Fava, 
_#LN. Moser 
BY: ‘Liman Society of New boots George B 
- Misettneons: ‘Scfenitific gre 
arvard Coll 
of Elec tricity held at singin. August to November, May, D. P. Heap: ff 
: Light, P.G ee 
