liKACiS OF PKKJl <,ATI<: IIVBKIDS 



Involucrul hracls of the pcrjuKatc hybrids between Egyptian and IlincH cottons, representing 

 five of the sister plants shown in fig. 2. Note the difTerence in form, size, position and 

 texture of the bracts. Photographs natural size. (Fig. 4.) 



