Addenda

The following was omitt,ed from the Discussion and Preliminary Report, by James B. Grogan and Emmet,t J. Johnson entitled “Xucleic A4cid Composition of a Pseudomonas aeruginosa Bact,eriophage”, Vol. 24, No. 2, pp. 235-2317:

ACKNOWLEDGMENT

This research was supported by training grant AI-69 from the National Institute of Allergy and Infectious Diseases, U.H.P.H.S. and Research and Development Command, U.S. Army Contract

DA-49-193-M.D.-2195.

The following was omitted from the article by AI. W. Johnson entitled “The Binding of Metal Ions by Turnip Yellow Mosaic Virus”, Vol. 24, Ko. 1, pp. 26- 35:

ACKNOWLEDGMENT

Part of this work was carried out while the Virus Research Unit was in receipt of a N.I.H. Grant No. AI-03400.

Erratum

Vol. 24, No. 2, in the Discussion and Preliminary Report ent,itled “Tempera- ture-sensitive Mutants of Coliphage Lambda” by Arthur Brown and Werner Arber, pp. 237-239 :

Page 239, paragraph 7, sentence 1, should read:

“ 9. ts 10 did complement wit,h all the sus mutants and Xrlg’s involved”.

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