1883,] Botany. 541 
ment composed of small cylindrical rods which moved rapidly 
across the field of the microscope with a wriggling motion, often 
bending themselves to form acircle. This may be the same as 
that mentioned by Bechamp under the name of Microzyma crete. 
In the same journal, Professor R. B. Warder gives a list of papers 
referring to the influence of bacteria upon the changes of nitrog- 
enous compounds. 
That the natural nitrates are the result of a fungoid growth is 
a fact interesting to mineralogists as well as to chemists, biologists 
and naturalists generally. 
BOTANY .! 
the shade. Fig. repre- 
ing, and also gives a trans- 
verse section. All the fig- 
ures are drawn one-third 
of the natural size. The , 
Valves of the pod in ques- 
tion, as shown at F ig. 2; Wistaria Pods. 
turned entirely inside out 
at their lower extremity, and separated from their pedicel, pie 
L. 
th 
lp: 
Edited by Pror. C. E, Bessey, Ames, Iowa. 
