Se TENCE: 
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Fripay, Marca 8, 1912 
CONTENTS 
Some Biochemical Problems in Bacteriology: 
PROFESSOR F. P. GORHAM ............... 
The Teaching of Microbiology in Colleges of 
the United States and Canada: PROFESSOR 
Anions (Ch IASON 6 6qgcognn0e00G000006 362 
A Botanical-zoological Laboratory in Porto 
Rico: Proressor F. L. STEVENS ......... 366 
Scientific Notes and News .............+-- 367 
University and Educational News .......... 370 
Discussion and Correspondence :— 
Reply to Holmes’s Criticism of ‘‘ Light 
and the Behavior of Organisms’’: Pro- 
mnissOis (©, WN oooconconsuesdbodesKd 371 
Scientific Books :— 
Brigham’s Commercial Geography: Dr. W. 
INL, (CHREORAY obo ono goacdaboocbosdboUORgO 374 
Some Early Physiographic Inferences: Dr. F. 
Wo IBMDIESON 5o6caco0sd0n200CoDD ODD UKOKS 374 
Special Articles :— 
Horns in Sheep as a Typical Sex-limited 
Character: PRorgessor T. R. ARKELL, Dr. 
C. B. Davenport. The ‘‘ Stomach Stones’’ 
of Reptiles: Dr. Roy L. Moopim 375 
The Washington Meeting of the American 
Chemical Society: PROFESSOR CHARLES L. 
IPIMEONSdsign doeudoodnaoeSoscouooMoooU ad 
MSS, intended for publication and books, etc., intended for 
Teview should be sent to the Editor of Screncr, Garrison-on- 
Hudson, N. Y, 
SOME BIOCHEMICAL PROBLEMS IN 
BACTERIOLOGY! 
THE Society of American Bacteriologists 
stands, primarily, for pure as distin- 
guished from applied bacteriology. In 
these days when the applications of the 
science are becoming so immensely im- 
portant, and therefore so enticing to the 
investigator, there is danger that our 
thoughts turn not often enough to the 
broader aspect of the science, upon which, 
as a foundation, all of its applications 
must ultimately rest. We as a society 
must make it our special duty to see that 
these foundations are laid broad and firm, 
upon the very bed rock of truth itself. 
We have as a society been interested for 
some time in the preparation of standard 
and uniform methods of describing bac- 
terial species. This is of fundamental im- 
portance, leading as it does to uniformity 
of method and completeness and compara- 
bility of results. When we couple with 
this the use of the standard methods of the 
laboratory section of the American Pub- 
lic Health Association we have gone a 
long way toward the standardization of 
our work, and have begun the foundation 
upon which can be built the science of 
pure bacteriology. 
But we must ever beware that we be- 
come not slaves to standardization and 
uniformity. It is well enough to proceed 
by standard methods, but we must not be 
tied by them. We must ever be ready to 
abandon the old and adopt the new, when 
the new marks the way of progress. 
1President’s address before the Society of 
American Bacteriologists at the Washington meet- 
ing, December 28, 1911. 
