TRANS. N. S. INST. SC., VOL. X. 



PLATE III. 



Photograph by DR. \. H. MAcKxv. 

 TRANSVERSE SECTION OF VASCULAR CORE OF STIGMARIA. 



Magnified about 3% diameters. 

 (TO ILLUSTRATE PAPER BY MR. POOLE.) 

 Face p. 3*6. 



