( a8 
Frmmay, Juty 12, 1918 
CONTENTS 
The Man of Science and the Public: PROFESSOR 
IDWIN LINTON .......0.00 ccc gehen 25 
Observations on the Solar Eclipse made by the 
Crocker Expedition of the Lick Observatory: 
W. W. CAMPBELL 
Scientific Events :— 
Instruction and Research in Industrial Hy- 
giene at the Harvard Medical School; The 
Mexican Agricultural Commission; Organi- 
gation of Chicago. Technical Societies for 
War Work; Engineer Officers’ Training 
School at Camp Humphreys .........+++++ 36 
Scientific Notes and News .......+eeseeeee: 38 
University and Educational News .......... 42 
Discussion and Correspondence :— 
Brown Rot of Solanacee on Ricinus: Dr. 
Erwin F. Situ anp G. H. Goprrry. Cellu- 
loid Lantern Slides: ArtHuR W. Gray. 
Washing Microscopic Organisms: Dr. HeEr- 
BERT Ruckes. An Optical Illusion with 
Fatal Consequences: WALTER R. SHAW.... 42 
Scientific Books :— 
Britton on the Flora of Bermuda: Pro- 
FESSOR JOHN W. HARSHBERGER .......... 46 
Special Articles :— 
The Rydberg Universal Constant: Ray- 
mMoNnD T. Birce. Moisture Ratio: ALFRED 
PSU igus a 445 EMS OS dig somes 5 bb 5 he doe ee 47 
LEES 
MSS. intended for publication and books, etc., intended for 
review should be sent to The Editor of Science, Garrison-on- 
Hudson, N. Y. 
PUBLIC! 
AN APPRECIATION OF SPENCER FULLERTON 
BAIRD 
Never are the limitations of language 
more keenly felt than when the attempt is 
made to depict a human life. 
_ If I could create, in however small de- 
gree, in the minds of those who never knew 
him, some understanding of the spirit of 
unselfish devotion to service that animated 
Professor Baird, of his unfailing wisdom, 
his clear, comprehending intellect, his evi- 
dent reserve power, his kindly interest in 
others, his quiet eloquence in conversation, 
his serenity of mind and purity of heart, 
I should be content. 
But how impossible it is to give adequate 
expression to a life of such fulness as that 
of Professor Baird’s. His biographers, 
one after another, lament their inability to 
describe in commensurate terms the simple 
grandeur of this man, and to set forth in 
proper proportions his achievements. Pro- 
fessor Goode, in one of his memoirs, as if in 
despair at the feebleness of language to ac- 
complish such a task, says: 
Such a man has a thousand sides, each most fa- 
miliar to a few, and perhaps entirely strange to 
the greater part of those who know him. 
But Professor Baird was not many-sided 
in the sense in which that term is usually 
employed. No one who knew him would 
have thought of calling him versatile. All 
who have written of him unite in bearing 
1 Address delivered at the dedication of a me- 
morial tablet to Spencer Fullerton Baird on the 
forty-fifth anniversary of the establishment of the 
United States Bureau of Fisheries, Auditorium of 
the National Museum, February 9, 1916. 
