PLATE 87 



519 



320 



521 



522 



517, 51S. Reduced Hemoglobin of the Leopanl-cal (/<W/x l>ciii/(ili : iixi.<<), showing single crystals in \arious 

 orientations. In 51S a number of different sections of tlie prism are shown. 



519. Same, showing two skeleton groups in parallel growl li orientation. 



520. Same, showing group of large crystals growing from a square cross-seel ion of a prism as a nucleus. 



Cross-section of a prism seen near bottom of figure. 



521. Same, showing group similar to 520. with single large prism ami oblique section of another prism 



that resembles an acute rhombohedron. 



522. Same, showing single large crystal with outgrowth of .smaller crystals. 



