Eeactioxs and Peoducts in Inteespecific Ceosses 



99 



Fig. 4. — Showing results obtained in the determination of the variability in 

 form-indpx iu the pure p.m'nt stiuks of /^. diversa and L. signaticoUis and by the 

 similar treatment of the peculiar pure-breeding extracted race that was super- 

 ficially L. sigrmticollis, but which showed itself to be made up of three modal 

 groups as far as form-index was concerned. (See text for explanation.) 



