PLATE 49 



289. /3-Oxyhemoglobin of the Ground-hog (Marmnta nwnax), showing radiating tufts of hair-like 



crystals. 



290. a-Oxyhemoglobin and /3-oxyhemoglobin of same, showing tufts of jS-oxyhcmuglnhin and small 



hexagonal plates of first-formed a-oxyhemoglobin crystals. 



291. Same, showing single large crystal with groups of smaller crystals on it in parallel growth. 



292, 293. Same, showing large simple and composite crystals, the parallel growth preserving general hex- 

 agonal outline. 

 294. Same, showing irregular aggre'gate of hexagonal plates, all in parallel growth. 



