May II, 1 888.] I 



SCIENTIFIC NEWS. 



435 



But besides this outer skin there is an inner cortex 

 that is softer, more friable, and of very different 



than any other part of the grain. When ground it forms 

 the thinner smaller scales known as the " pollard." 



Fig. I. — The Sturtevant Mill in Operation. {For description see next page.) 



Fig. 



-Sturtevant Mill with Curs 



composition. It contains a larger proportion of nitro- 

 genous material and of the phosphates that have such 

 high nutritive value in the sustenance of bone and brain 



My object in writing is to point out the difference 

 between bran and pollard, and to suggest that a model 

 bread should be made not exactly of whole-meal but of 



