The next No. of this Journal will be published on the first of Sept. 
a -.CONTENTS. 
=e" 
re I. Fai ‘of the Geological esse on the Chippewa Lace 
Disttict of Wisconsin and.part of Iowa, made in the ss 
1847, under the direction-of D. D. Owen, M.D., : 
II. On Rutilated Quartz Crystals from Vermont, and Phenomena , 
connected with them; by Francis Aucer, A:M., _ == 124) 
Il. Examination of Kirkwood’s Analogy ; by Ssars C. Wine, SASS 
Iv. On Kirkwood’s Analogy ; by Dr. B.- -A. Gout, Jr., 26: 
the. Natura 
é Ere ;: | WHITTLESEY, -- 
On the! uantity of Feat evolved from Aa bosphane Ai by 
Mechanical Compression ; by Jonn Garric, M.D.; = -- 
VIL On the sles eg of the Sun’s Nas Intensity at the exe 
t rior 
i - 
eI 
2 ; Erratic Phenomena about Lake ee : * Prof. 
2 pete Gold ee Cater Pm ees Ancen, 
SCIENTIFIC. ee 
haigie ar, 
ig’ 112-Sopare of Hor gar in 
ontieum : Soest, of res a ag 1 ony Iedons of —" 
en. be > 
