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wise or in multiple interactions). Thus, all the experimental facts concerning the micelles discussed in the paper are in agreement with the theory (see ref. a and b above). This correction was pointed out to us by J. F. Goodman.-H. A. SCHERAGA. Leonard S. Silbert, B. F. Daubert, and Leo S. Mason: The Heats of Combustion, Formation, and Isomerization of Isomeric Monoglycerides. Page 2887. I n footnote 1,the year should be corrected to read 1963.-LEONARD 8.SILBERT. R. Srinivasan and Sheldon E. Cremer: Photochemical Rearrangement Reactions of 2-n-Propylcyclopentanone. Page 3147. Srinivasan and Cremer are mistaken in making the statement that “Photochemical Rearrangement Reactions of
The Journal of Physical Chhemktry
ADDITIONSAND CORRECTIONS
2-n-Propylcyclopentanone” appears to be the first instance in which the Norrish type I1 reaction has been observed to involve an alicyclic ketone. Bamford and Norrish [J. Chem. Xoc., 1521 (1938)] found that 1-menthone was photolyzed almost exclusively by this mechanism to propylene and 3-methylcyclohexanone.
PETER BORRELL UNIVERSITY OF KEEL^ STAFFORDSHIRE, ENGLAND
