642 



PROCEEDINGS OF THE AMERICAN ACADEMY. 



a 

 a 



y 

 y 



a 



/3 



a 

 a 

 a 



/3 

 /8 



/8 



D 



CH(C00H)2 present.8 

 CH3 • CH(C00H)2 - H • CH (C00H)2 3G2 - 207 

 (CH3)2 C (C00H)2 - CH3 • CH (C00H)2 515 - 362 



cJhb)^ (C00H)2 - ^^'^G (C00H)2 676 - 515 



CsH-)^ (C00H)2 - c'h')^' (C00H)2 990 - 833 



C3H;)^ (C00H)2 - c'h /^ (C00H)2 1146 - 990 



CO present.^ 



CO • CH3 - CH3 • CHO 437 - 282 



• CO • CH3 - C3H7 • CHO 754 - 600 



CH2 • CHO - CH3 • CHO 441 - 282 



CH • CHO - CH3 • CH2 • CHO 600 - 441 



F 

 COH present.io 

 CHs-CH^OH-CHgOH 

 CH3 • CHOH • CH3I1 - CH3 ■ CH2OH 



(CH3)3 COH - (CHa)^ CHOH 

 C0H5 • CH2OH - CH3 • CH2OH 

 (CHg)^ CH • CH2OH - CH3 • CHo • CH2OH 

 (CH8)2 C2H6 • COH - (CH3)3 COH 



CH3' 



C3H7 



CH3- 



(CH3)2 



155 

 153 



461 

 157 

 156 



155 

 154 

 159 

 159 



326 



478 

 633 

 480 

 637 

 788 - 633 = 



171 

 322 



478 

 322 

 480 



155 

 156 

 155 

 158 

 157 

 155 



Averages. 

 C„H2„+iCH3 - C„H2„+iH = 156.2 Cal. 



* Id., pp. 114, 116. ^ Thomsen, Therinochemische Untersuchuniien. 



" See Stolimann's tables, Zeits. f. physikal. Chem., 6, 334 (1890) ; 10, 410 (1892). 

 " Louguinine's values are here cliauged; see Henderson, Jour, of Physical 

 Chemistry, 19, 43 (1905). 



