volume Lxx CONTENTS 



vn 



PAGE 



Pier Andrea Saccardo 



/. /. Davis 156 



James M. Macoun (with portrait) - Theo. Holm 240 



Use of dilatometer in studying soil and plant 



relationships 



- \I. M. McCool and 



C. E. Millar 317 

 Isolating single spores (with one figure) - Carl D. La Rue 319 



Effect of zinc and iron compared with that of 



uranium and cobalt on growth of Aspergillus - R. A. Steinberg 46 



Current Literature - ----- - 87,158,243,321,403,469 



For titles of book reviews see index under 

 author's name and reviews 



Papers noticed in "Notes for Students" are 

 indexed under author's name and subjects 



DATES OF PUBLICATION 



No. 1, July 24; No. 2, August 21; No. 3, September 15; No. 4, October 19; 

 No. 5, November 24; No, 6, December 30. 



ERRATA 



Vol. LXX 



P. 47, line 3, for " but as you suggested, it might be " read " but, as you suggested 

 it might be," 



P. 2ii, line 13, for "Lena" read "Leva" 



P. 304, line 8 from bottom, for "change from wet to dry seasons" read "changes 

 from wet to dry and dry to wet seasons respectively" 



P. 333, line 4, for 'hyperforeum 1 ' read "hyberboreum. 

 P- 359, in first plate title, for "lyrata" read "lyratum" 



P. 524, line 16, for "centers" read "center" 



P. 527, line 2, for "black, margined" read "black-margined" 



