d by JoHN M. Courter and Cuartes R. BARNES, with the assistance of other members of the 
botanical staff of the University of Chicago. 
ol. XXXIX, No.5 : Issued May 20, 1905 
ree 
CONTENTS 
eeOUY TIC: ENZYMES, I: Arthw L.\Dean - “*- SSR SS a ten = = ‘gal 
O relly OF SPORANGIUM IN BOTRYCHIUM. Conrrrutions FROM THE 
ULL BoTanicaL LABoratory. LXXI (WwiTH PLATE Ix). Ira D. Cardi, iff 340° 
LOGICAL PROPERTIES OF BOG WATER. Cowtrisuti0ns FROM THE Hoi 
Borantcat Laporatory. LXXII (WITH THREE.FIGURES). Burton Edward Livingston . 348 
S FOR OBSERVING ee TRANSPIRATION STREAM, (wit TWO 
Geten:), Otto V. Darbishire ef 356 
POLYEMBRYONY IN SPHAGNUM (WITH THREE FIGURES). Harold L.Lyon -- -® = 365 
ADENODERRIS, A VALID GENUS OF FERNS (WITH TWO FIGURES). William R. Maxon 366 ~ 
5 - hs - ~ “ - ~~ 37 
RUSTS OF SWITZERLAND 
4NOR NOTICES - 2 : 8 '§ . is * w on FI 
TES FOR STUDENTS - - - - : - : : - 374 
a ee es oe ee a ee 
ications for the Edit } $22.4. 4] 4 ech cago, Til 
for AZETTE. 
*8, if desired, must be ordered in advance of publication. 
1 rnished b bia Additional copies and ¢ ya ti rieie by d) will be suplied 
The table below shows th P mate cost of separates consisti ain text or text wit 
a actual cost may vary fre figures given, and will depend upon the amount of ebay 
wchate, the Pages into forms rms, press work, paper, binding, etc. Separates containing half-tones may 
ected to cost somewhat more than whe as by s given, the increase depending upon the number of cuts 
‘amount of work required upon them. 
Number of copies 50 100 . 150 200 
© peace OF tea PO, $1.30 $1.60 $1.80 $2.00 
Bea or ieee? eS 1.80 2.20 2.50 2 
for 16 pagesorless | . | 3.20 4.00 4.65 ae 
ble =2 singl .80 1.10 1.35 1.60 
title (pa ao like Gazerre cover) . 1.20 1.60. 2.00 2.40 
ae correspondence should be addressed to The University of Chicago Press, Chicago, Ill. 
ions j Ption, $5.00 per year. Single copies 50 cents. Postag A by publishers ny Republieo 
ma. Ha’, United States, Canada, Mexico, Cuba, Port ae Panama Canal Zone, Republic o 
; ippi Guam, Tutuila oo. ‘shang mel all o 
nion, cents for postage should be added to the cription price... 
ene numbers should be filed = or before thirty days after the date of emp ae ae 
Subscription, £r Bd per year ee included), should be remitted to WmLLIaM WESLE 
St., Strand, Lo n, European 
- “ Gust 21, 1896, at the Post- meets at , as second-class matter, ee Act of Congress, March re 1879- 
Copyright, 1904, y the University of Chicago 
