The next No. of this Journal will be published on the first of May. 
CONTENTS. a 
ge. 
Art. XV. Memoir on Meteorites—A Description of five new oe 
teoric Irons, with some theoretical considerations on the o 
gin of Meteorites based on their oo — SS hag chat 
acters ; by Prof. J. Lawrence Smiru, 53. 
XVI the EE ariodia Rise and Fall of ise pa by Mason 3 
Lac 164 if 
XVIL. On ‘he Clinochlore of Actmeto wks by N. von Kost , Bae 
176 | 
xvul, ‘ brief notes ak moms tics ciiiened with thie Duck | 
Town, Tennessee, Copper Mines; by M. Tvomey, - 18] @ 
: XIX. On the Periodical Variations of the Declination and Diseet 
| ive Force of the Magnetic Needle ; by Praf.W. A. Norton, 183 
XX. Observations on th e_ Fructification of thé’ Arachis cage 
= gea; by Huen M. Nine 212 
¥ 9.0.8 On certain Payers Pecpetlice of ‘the eee oft the Blectric 
Spark, within certain Gases as seen — a Prism ; by 
SS D. Atter, M.D., 213 ff 
_ ff AX _ Synopsis of the Jelitivologics! Fatiie af the Pacite Hise hi 
of N merica, chiefly fr froin the coffedtions made ee 
U.S. 5 Ex pl. Exped. under the eommand of Capt. C. Wilkes. 
eg — rca and Sompaaiene with Eastern types : 
L. Aca 
xe! erat or a Coal Race on the- Wester borders of he” 
_ Lake of the Woods; by Henry R. Scuoorc 
v. Abstract of a Meteorological Journal, for Te; year 1854, 
kept at Marietta, Ohio; by 8S. P. Hitpretu, M.D., 234 
XXV. On the Composition of Eggs in the animal series ; by A. 
Sache and Fréemy.—Part II. 238 | 
XXIV. Chemical Examinations; by Ezequiet Ue ECHEA, - 240 | 
XXVIL. Review of the Fifth volume of 2 Soo. sand - ss! 
e aor in wa ain geo iff 
| butylie Alcohol, 268—O8 
