The Botanical Gazette 
A Montbly Fournal Embracing all Departments of Botanical Science 
Edited by JOHN M. CouLTER, with the assistance of are members of the botanical staff of the 
University of Chic 
Issued June 17, ios 
Vol. LHI CONTENTS FOR JUNE 1912 No. 6 
THE FORMATION OF MECHANICAL TISSUE IN THE TENDRILS OF PASSIFLORA 
CAERULEA AS 7 eg et oa BY TENSION AND. CONTACT idee THREE 
FIGURES). W. D. Brush - - S =o aS 
A COMPARISON OF: THE RATES OF EVAPORATION IN CERTAIN ASSOCIATIONS 
IN CENTRAL ILLINOIS (warn srx Ficures). Henry Allan Gleason and Frank Caleb 
Gates - - - ~ - - - ~ - - - - - = - - - 478 
A STUDY OF TARGIONIA HYPOPHYLLA. ContrisuTions FROM THE Hutt BoTANICAL 
LABORATORY 156 (WITH THIRTEEN FIGURES). Hermann Deuitsc = - ss 2 ~ 492 
A PRECISION AUXANOMETER (wirn two rictrEes). W.T. Bovie - - wine - 504 
BRIEFER ARTICLES ; 
Some PLants OF WESTERN America. @. M. Gree - - - =» $10.3 
ae MOISTURE IN THE CoTToNWwoop DUNE pecsiane OF ees paca (WITH ONE 
\ FicuRE). George D. Fuller _- - - - So ee eee 
CURRENT LITERATURE 
BOO. IEWS => ie > 5 - = “2 i > . = = “Soo 
TEXTS FOR SECONDARY SCHOOLS 
MINOR NOTICES - = ~ se - - ~ - - - - - - 516 
NOTES FOR STUDENTS + = ad - a > - - - - - - ~ 517 
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