Physiology of the Sctprolegniaceae . 
387 
EXPLANATION OF FIGURES IN PLATE XXIII. 
Illustrating Dr. Kauffman’s Paper on Saprolegniaceae. 
All the figures were drawn with camera lucida. They are all taken from specimens of 
Saprolegnia hypogyna. The magnification is uniform for all the figures. 
Figs. 1-3. From cultures in haemoglobin and peptone. 
Figs. 4-7. From cultures in haemoglobin and CaHP 0 4 . 
Figs. 8-10. From cultures in haemoglobin and Ca 3 (P 0 4 ) 2 . 
Fig. 11. From cultures in haemoglobin and KN 0 3 . 
Figs. 12-15. From cultures in haemoglobin and K 3 P 0 4 . 
Figs. 16-18. From a culture in haemoglobin and K 3 P 0 4 , with an addition of NaCl. 
University of Michigan. 
May , 1907. 
