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200 PROCEEDINGS OF THE AMERICAN ACADEMY 



" Mr. Adolph Schlieper performed the analysis, after attempts with 

 oxide of copper, by means of chromate of lead, as the oxidizing 

 body. The crystals by fusion lose the elements of water, but when 

 dried in warm air over sulphuric acid, 



1. 0.304 grm. gave 0.851 grm. carbonic acid, and 0.305 grm. water. 



2. 0.2513 grm. substance gave 0.705 grm, carbonic acid, and 0.2503 

 grm. water. 



3. 0.290 grm. substance gave 0.811 grm. carbonic acid, and 0.293 

 grm. water. 



" Calculated for 100 parts, we have for the empirical formula, 

 C 8, H 7, O, or, 



Calculated, I. 



C 8 = 48=76.19' 76.34 



H 7= 7 = 11.11 11.14 



O = 8 = 12.70 12.52 



" All attempts on the part of Mr. Schlieper and myself to form 

 compounds with chlorine, hydrochlorine, or other acids, failed ; but 

 the deductions of Mr. Schlieper which follow show clearly that this 

 new body belongs to the large class of Stereoptenes, or camphors of 

 the volatile oils. 



" As a valerian camphor, its probable formula is obtained by mul- 

 tiplying the empirical formula by the number 5, or, 



C 40, H 35, 5, = Valerian Camphor. 

 " Under this view, it appears to be derived from borneole, C 10, 

 H 8, by the process of oxidation, in presence of water and atmos- 

 pheric air ; thus, 4 equiv. borneole -|- 3 equiv. water -[- 2 equiv. oxy- 

 gen, form the crystallized body. 

 4 (CIO, H8) = C40, H32 



3 H, 0= H 3, 3 



2 0= 02 



C 40, H 35, O 5 = Valerian Camphor." 

 Mr. Dana commimicated, through the Corresponding Secre- 

 tary, a continuation of his account of the Crustacea collected 

 in the cruise of the United States Exploring Expedition, 

 viz. : — ' 



