VOLUME LXIIl] 



CONTENTS 



vil 



Briefer Articles 



Henry Harold Welch Pearson (with portrait) Charles J. Chamberlain 

 Soil moisture index 



PAGE 



A freezing device for the rotary microtome (with 





one figure) 



A method for ' producing conductivity water suit- 

 able for water culture experiments (with one 

 figure) ---------- 



Manipulating microscopic organisms in staining - 

 The Botanical Station at Cinchona - 





IsO 



Francis Ramaley 151 



N. L. Gardner 236 



R. B. Harvey 321 



/. Ben Hill 410 



D. S. Johnson 412 



Current Literature 81,153, 240, 323, 414, 524 



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. i, January 15; No. 2, February 15; No. 3, March 15; No. 4, April 16; 

 No. 5, May 16; No. 6, June 19. 





ERRATA 

 Vol. LXIII 



P. 50, line 17 from top, for fig. 15 read fig. 14 



P. 50, line 18 from top, for fig. 16 read fig. 15; also insert fig. 16 after leaf 



P. 80, last line, for have connection read have no connection 



P. 142, legend of fig. 4, for verticle read vertical 



P. 272, line 16 from top, for fig. 15 read fig. 18 



P. 277, line 2 from bottom, for 5 read 6, and insert between 4 and 6 the fol- 

 lowing: 5. The nucellus forms a beaklike prolongation, which disintegrates 

 after the embryo is formed. 



aiLLl Lilt ^lllULJKJ 13 1^1111V,*J. 



P. 279, line 14 from top, for 5 read 3 





