Che Botanical Gazette 
HA Monthly Journal Embracing all Departments of Botanical Science 
Edited by JoHN M. CouLTER and CHARLES R. BARNES, with the ae of other members of the 
3 botanical staff of the University of Chic 
Issued August 22, 1908 
Vol. XLVI CONTENTS FOR AUGUST 1908 No, 2 
(LORAL SN IN THE PRAIRIE-GRASS FORMATION OF SOUTHEASTERN 
SOUTH DAKOT CONTRIBUTIONS FROM THE HULL BOTANICAL LABORATORY 113 
es THREE FIGURES). LeRoy Harris Harvey - : 81 
UNDESCRIBED PLANTS FROM GUATEMALA AND OTHER CENTRAL AMERICAN 
REPUBLICS. XXX. John Donnell Smith bh 
METHOD FOR THE QUANTITATIVE DETERMINATION OF TRANSPIRATION 
IN PLANTS (witH onE FIGURE), Geo. F Freeman - - - 118 
THE TOXIC PROPERTY OF BOG WATER AND BOG SOIL ib SIX noe Alfred 
Dachnowski— - : - 130 
BRIEFER ARTICLES 
THE FLOWERS OF WASHINGTONIA (WITH FIVE FIGURES). S. B. Parish - - - 144 
URRENT LITERATURE 
BOOK REVIEWS 3 E : 3 : c 2 3 - - - - 148, 
THE QUESTION OF SEX. PLANKTON OF ILLINOIS RIVER. FLORAL MECHANISM. 
MINOR NOTICES - ~ ‘= : : : & 3 , 2 : ee 2: 
NOTES FOR STUDENTS - be K i = ss x - : - - : mee Ki 
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