Vil. 
i 
CONTENTS. ¥ 
Pais. 
A new <p of Crystallographic Symbols; by 
James D. Dan 
- Apparatus for aeinita the Nitrogen from Atmos- 
pheric Air; by R. Hare, Prof. of Chemistry in 
the University of Pennsylvania, &c. 
- Large Volumescope, for the Analysis of Atmospheric 
Air, by means of Nitric Oxide; by Rozert Hare, 
Prof. of Chemistry in the Univ. of Penn., 
. On the Excrementitious matter thrown off by Plants; 
by J. Bue, 
. Notice of an easy method of filling long Syphon 
tubes, in a Note addressed (by request) to the Editor; 
by Witxiam Foster, Esq., 
. Caricography; by Prof. C. Dewey 
- Notice of the fossil teeth of Fishes of the United 
States, the discovery of the Galt in Alabama, and a 
proposed division of the American Cretaceous Group; 
by SamveEt Georce Morton, M. D., 
. Remarks on the Retina; by W. C. Wallace, M. D. 
Surgeon to the N. Y. Institution for the Blind, 278 
- Observations on the Tertiary Strata of the Atlantic 
Coast; by T. A. Conran, 
- Notice of the Transactions of the Geological Society 
of France, for 1838, by M. Bovg, 8vo. p. 506. By 
C. U. Surparp, 
. Notice of the “ Travels of a Naturalist in the Alps ;” 
Read before the Society of Naturalists at Soleure, 
by their President, Fr. Jos. Huet. By C. U. 
SHEPARD, 
Remarkable Parhelia, seen at Fort Howard, (Green 
Bay) Michigan Ter.; by Lt. R. E. Clary 
. Replies to a Circular in relation to the occurrence of 
an unusual Meteoric Display on the 13th Noy. 1834, 
&c.; by Prof. A. D. Bacue, 
. On “- Evidence of Certain Phenomena in Tides and 
Meteorology; by W.C. Reprrexp, 310 
. On the Resistance of Fluids; by Gro. W. Kerx 
Prof. of Natural Philosophy, in Waterville wolage. 318 
. Experimental illustrations of the Radiating and Ab- 
sorbing Powers of Surfaces for Heat, of the effects 
of Transparent Screens, of the conducting Powers 
of Solids, &c. ; by Prof. A. D. Bacue, 
