Botanical Gazette 
A Monthly Journal Embracing all Departments of Botanical Science 
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‘Vol. XXXVII, No. 4 Issued Re 16, 1904 
CONTENTS 
ARE ROOTS: AEROTROPIC ? (WITH FIVE FIGURES) Mary Elia Bennett - - 241 
ES YONTRIBUTIONS FROM THE ROCKY MOUNTAIN HERBARIUM. V. Aven Nelson 260 
THE + hageeel daca OF THE SEX ORGANS OF PLANTS. CONTRIBUTIONS FROM THE 
: L BoTANICAL LABORATORY. LV (WITH SIXTEEN FIGURES). Florence Lyon - 280 
=e sche 
be 
THE STRUCTURE OF THE sarees, AND THE eae OF sinc ogee OF THE PRIMI- 
TIVE je sareidaty RMS. Charles Robertso 20% 
ARCTERICA, THE =anene GENUS OF HEATHERS ae TWO FIGURES). Frederick 
Vernon Coville Ss 2 - - - 298 
x NEW PRECISION-APPLIANCES FOR USE IN PLANT PHYSIOLOGY (WITH THREE FIGURES). 
W. F. Ganong . = : : - ve - . - 
302 
: sf ; 3 : : . eee 
THE DEsErRT BOTANICAL LABORATORY. PLANT CHEMISTRY. 
THE BoNN TEXxT-BooK. ALPINE VEGETATION. ECOLOGY OF ir LENA VALLEY. 
A FLora or NoRTHWEST AMERICA A Stupy IN HEREDIT 
MINOR~NOTICES : Z 2 ‘ : : : 314 
NOTES FOR STUDENTS : - - : . : - - - 316 
WS . = : 3 $ . : : 323 
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