VAGE 



LIST OF ILLUSTRATIONS 



Three portraits and seven plates 



No 9. OCTOBER, 1913 



Plate I. A modified Hempel gas pipette (Benedict) 1 



No. 10. JANUARY, 1914 



Portrait. Henry H. Rusby I49 



Plate 2. Comparison of physico-chemical constants of the Juices of apples 



and pears of varying size and fertility (Harris and Gortner) 201 



Plates 3-5. Plant growth in heated soil (Wilson) 204 



Nos. 11-12. APRIL AND JULY, 1914 



Portrait. Hugo Kronecker 345 



Plates 6-7. Effect of salicylic aldehyde on plants in soil and Solution cul- 



tures (Skinner) 39° 



Portrait. Professors Hugo Kronecker and Leon Asher, and some of their 



pupils, in the Physiological Institute, Bern ; July, 1899 523 



XVl 



