


Potanical Gazette 
A Monthly Fournal Embracing all Departments of Botanical Pasig 
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FOREIGN AGENTS: 
Great Britain— Wm. WEsLEY & Son, 28 Essex Germany — GEBRUDER BORNTRAEGER, Berlin 
St., Strand, London. 18 Shillings. SW. 46, acted 17a, 18 Marks 
Vol. XXXI, No, 4 Issued April 15, 1905 

CONTENTS 
NEW OR LITTLE KNOWN NORTH AMERICAN TREES. III. Charles S. Sargen 217 
THE EFFECT OF Bibs ACID GAS UPON GRAINS AND OTHER ace 
(WITH SIX FIGURES). C. O. Townsend 241 
THE TUBER-LIKE ROOTLETS OF CY CAS REVOLUTA. CONTRIBUTIONS FROM THE 
HuLL BoranicaAL LABORATORY. XXVI (WITH TEN FIGURES). A.C. Life - - 265 
BRIEFER ARTICLES. 
WALNUT BACTERIOSIS. Mewton B. Pierce - - - - - - - - ory | 
CORRENT LITERATURE. 
BOOK REVIEWS - - - - - - - “ - in TE 
VEGETABLE PHYSIOLOGY. THE PROBLEMS OF LIFE. 
MINOR NOTICES - - - - - - - - a paar’ 2 A 
NOTES FOR STUDENTS - - - - - - - - oe 298 
OPEN LETTERS. 
THE ROCHESTER Cove. Charles Louis Pollard - - : - - - - 285 
NEWS ‘ a F Ae erp cies ¢ = i si = a? 298 

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