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662-663.

RECENED for review December 31,1981. Accepted March 15, 1982. R.C.B., R.B.C., and B.S.F. wish to thank the National Science Foundation for the funds to purchase the FTMS instrument.

CORRECTIONS

Laser-Induced Thermal Diffraction for Calorimetric Absorption Measurements

M. J. Pelletier, H. R. Thorsheim, and J. M. Harris (Anal. Chem. 1982, 54, 239-242).

There is an unfortunate omission in eq 8. A superscript 2 should be placed after the brackets so that the equation reads

l2 G.908P(dn /dT) X,2a

32a2krX, sin2 (0/2) sin 8

Determination of Dissolved Organic Carbon in Water

Ronald A. van Steenderen and Jiunn-Shyh Lin (Anal. Chem. 1981,53, 2157-2158).

Please change the numbering in Figures 1 and 3 to match the captions and text. In Figures 1 and 3 (on the graphs themselves) number (2) becomes (3) and number (3) becomes (4).