874 Miscellantes. 
sacs so far, that it occupies the whole space of the body, and then 
the devoured substances, very.similar to the ventral sacs, circulate 
inthe whole body. | Yours, &c. 
London, Sept. 15,1838. 
eos 
Ideal figures of Lorodes Bursaria in various states of the ex- 
-tension of the alimentary canal, and its inner circular motion, not 
of the ventral sacs, but of the contents of the sacs voided into the 
canal a the mouth, b the alimentary canal, ¢ ventral sacs, w canal 
' 
» = 
MISCELLANIES. 
“Wage 
an es Dr. - Tonane Experiments on the Condensation of Carbonic, Sul- 
s, and ¢ 
erous, and Ch, Acid Gases—We have’ been, from time to 
1e, informed b letters from Prof. John Torrey, of New York, of his 
progress in the condensation of gases, and we now take the liberty to 
give some few citations from his letters, although not intended for publi- 
cation, satisfied that Dr. Mitchell, who has given us such fine results, will 
be glad to see them, and trusting that Dr. Torrey will pardon the use 
made of his private communications. 
March 5, 1837—It it stated by Prof. T. that a few aaye before = had 
prepared several tubes of liquid carbonic acid at Princeton, New Jersey. 
April 1i—He writes again, that although he had been unable to get 4 
mechanic to construct an apparatus for condensing carbonic acid, he had 
made many experiments on the subject in tubes of glass, and with entire 
success. _ He says, that only a single accident occurred, which however 
- * See Dr. Mitchell’s sca p. 346. Ales st Y- 301, Mr. R. Addams's re- 
marks on the same subject.— 
