Correction: ``The π-Cation Radical of Chlorophyll aSource: Proceedings of the National Academy of Sciences of the United States of America,Vol. 68, No. 2 (Feb., 1971), p. 509Published by: National Academy of SciencesStable URL: http://www.jstor.org/stable/60413 .

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Vol. 68, 1971

Correction. In the article "The i-Cation Radical of Chloro-

phyll a," by Donald C. Borg, Jack Fajer, Ronald H. Felton, and David Dolphin, which appeared in the October 1970 issue of Proc. Nat. Acad. Sci. USA, 67, 813-820, an editorial change in the mode of abbreviation led to an error on- page 818, line 6. For ZnPh4P+., read ZnPh4C+- (the cation radical of zinc tetraphenylchlorin). The sentence should read as follows: "Other possibilities such as specific oxidation of a substituent group of Chl a are ruled out by the above argument and by the close similarity of the electronic spectra of Chl+ and ZnPh4C+ (the cation radical of zinc tetraphenylchlorin)."

Correction. In the article by K. H. Walen, Proc. Nat. Acad. Sci. USA, 68, 165-168, January 1971, the title should read "Nuclear Involvement in Poxvirus Infection".

Vol. 68, 1971

Correction. In the article "The i-Cation Radical of Chloro-

phyll a," by Donald C. Borg, Jack Fajer, Ronald H. Felton, and David Dolphin, which appeared in the October 1970 issue of Proc. Nat. Acad. Sci. USA, 67, 813-820, an editorial change in the mode of abbreviation led to an error on- page 818, line 6. For ZnPh4P+., read ZnPh4C+- (the cation radical of zinc tetraphenylchlorin). The sentence should read as follows: "Other possibilities such as specific oxidation of a substituent group of Chl a are ruled out by the above argument and by the close similarity of the electronic spectra of Chl+ and ZnPh4C+ (the cation radical of zinc tetraphenylchlorin)."

Correction. In the article by K. H. Walen, Proc. Nat. Acad. Sci. USA, 68, 165-168, January 1971, the title should read "Nuclear Involvement in Poxvirus Infection".

Vol. 68, 1971

Correction. In the article "The i-Cation Radical of Chloro-

phyll a," by Donald C. Borg, Jack Fajer, Ronald H. Felton, and David Dolphin, which appeared in the October 1970 issue of Proc. Nat. Acad. Sci. USA, 67, 813-820, an editorial change in the mode of abbreviation led to an error on- page 818, line 6. For ZnPh4P+., read ZnPh4C+- (the cation radical of zinc tetraphenylchlorin). The sentence should read as follows: "Other possibilities such as specific oxidation of a substituent group of Chl a are ruled out by the above argument and by the close similarity of the electronic spectra of Chl+ and ZnPh4C+ (the cation radical of zinc tetraphenylchlorin)."

Correction. In the article by K. H. Walen, Proc. Nat. Acad. Sci. USA, 68, 165-168, January 1971, the title should read "Nuclear Involvement in Poxvirus Infection".

Corrections 509

Correction. In the article "Revised Identification of the Chromophore of a Cell Division Factor from Crown Gall Tumor Cells of Vinca rosea L.," by Henry N. Wood, which appeared in the November 1970 issue of Proc. Nat. Acad. Sci. USA, 67, 1283-1287, the following corrections should be made:

(a) Page 1284, line 6 from bottom: 0.85, not 9.85.

(b) Page 1284, line 2 from bottom: insert "272," between "279," and "199."

(c) Page 1287, add to explanation of "Abbreviation" the words "in a butanol-water system after 500 transfers in countercurrent distribution."

Corrections 509

Correction. In the article "Revised Identification of the Chromophore of a Cell Division Factor from Crown Gall Tumor Cells of Vinca rosea L.," by Henry N. Wood, which appeared in the November 1970 issue of Proc. Nat. Acad. Sci. USA, 67, 1283-1287, the following corrections should be made:

(a) Page 1284, line 6 from bottom: 0.85, not 9.85.

(b) Page 1284, line 2 from bottom: insert "272," between "279," and "199."

(c) Page 1287, add to explanation of "Abbreviation" the words "in a butanol-water system after 500 transfers in countercurrent distribution."

Corrections 509

Correction. In the article "Revised Identification of the Chromophore of a Cell Division Factor from Crown Gall Tumor Cells of Vinca rosea L.," by Henry N. Wood, which appeared in the November 1970 issue of Proc. Nat. Acad. Sci. USA, 67, 1283-1287, the following corrections should be made:

(a) Page 1284, line 6 from bottom: 0.85, not 9.85.

(b) Page 1284, line 2 from bottom: insert "272," between "279," and "199."

(c) Page 1287, add to explanation of "Abbreviation" the words "in a butanol-water system after 500 transfers in countercurrent distribution."

This content downloaded from 130.132.123.28 on Sun, 4 May 2014 22:34:56 PMAll use subject to JSTOR Terms and Conditions