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September 18, 1948

Bergey's Manual of Determinative Bacteriology

JAMA. 1948;138(3):249. doi:10.1001/jama.1948.02900030081033

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The new sixth edition of this standard reference, revised under the editorial chairmanship of Robert S. Breed, contains contributions from sixty well known specialists in the field of bacteriology. Changes in the presentation and relationships of almost every genus of bacteria have been made by specialists in consultation with the editorial board. Nearly three hundred new species are described. Because of increased knowledge the number of species described under fission fungi has increased from 1,335 in the fifth edition to 1,630 in the present manual.

The authors state that the present edition does not cover all the descriptions of species found in the literature for, as in all other branches of biology, many of the descriptions are so inadequate that the species described cannot now be identified. Additionally, many of the descriptions are obvious duplications of previous descriptions, while other so-called differences are based on nothing more substantial than the

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