487 
the Fruit of Cucurbita. 
In conclusion I wish to express my thanks to those who 
have helped me by making observations. I would especially 
mention Mr. Lynch, the Curator of the Botanic Garden, who 
was untiring in giving me his valuable help. I am also much 
indebted to Miss Pertz, Mr. Tansley, Mr. de Havilland, as 
well as to Mr. Lamb of the Botanic Garden, and to my 
Laboratory assistant Mr. Elborn. 
EXPLANATION OF THE FIGURES IN PLATES 
XXII AND XXIII. 
Illustrating Mr. F. Darwin’s paper on the Growth of the Fruit of Cucurbita. 
Plate XXII. — Figs. 1-4 inclusive represent the rate of change in weight 
expressed in milligrams per minute. The broken line represents the temperature. 
Fig. 1 gives Experiment III. 
Fig. 2 „ „ IV. 
Fig. 3 „ „ V. 
Fig. 4 „ „ VIII. 
Figs. 5, Plate XXII, to Fig. 12, Plate XXIII, represent the rate of change in 
the diameter of the fruit, expressed in [i (o-ooi mm.) per minute. The broken line 
represents relative humidity in all except Fig. 5, where it represents temperature. 
Fig* 5 gives Experiment XI. 
Fig. 6 „ , XVI. 
Fig. 7 „ „ XVII. 
Fig. 8 „ „ XVIII. 
Fig. 9 » 
Fig. 10 „ „ 
Fig. 11 „ 
Fig- 12 „ 
Figs. 8-1 1 give the detail of a continuous series of observation from the morning 
of July 12 to the morning of July 15. 
Fig. 12 gives Experiment XVIII as a whole, including observations up to the 
evening of July 15. 
