DESCRIPTION OF PLATES. 



Figure 10. Male blossom of squash tied to insure purity of 

 pollen. See page 91. 



Figure 11.. Female blossom of squash (Crookneck) previous 

 to pollination; tied to prevent accidental crossing. See page 91. 



Figure 12. Longitudinal section of Crookneck and Golden 

 Custard squashes, at time of pollination. 



Figure 13. Crookneck crossed by Golden Custard, at matu- 

 rity. No. 2 mentioned on page 96. 



Figure 14. Crookneck crossed by Golden Custard, at matu- 

 rity. No. 4 mentioned on page 96. 



Figure 15. Crookneck crossed by Golden Custard, 14 days 

 after pollination. No ovules were fertilized and the fruit had 

 begun to decay. 



Figure 16. The offspring of Crookneck crossed by Golden 

 Custard. Note the intermediate characters. 



Figure 17. Golden Bush crossed by Hubbard. Illustrating 

 the possible stimulating effect of pollen upon the ovary in the 

 absence of fertilization. No fertile seeds were produced. 



Figure 18. Stigmas of Red Currant and Yellow Plum 

 tomatoes. See page 89. 



