CELL-CONTENTS AND FORMS OF CELLS. 197 



FIG. 112. Phyto-globulins (crystaloids) from several sources: A, a, b, from the white 

 potato; B, a to f, from the seeds of castor oil plant (Ricinus communis); in b and b are shown 

 different views of the same crystal; C, a to f, from the seeds of the Brazil nut (Bertholletia 

 excelsd). After Dippel in "Das Mikroskop." 



