PLATE 56 



fe 



331 



332 



' 



'.t'.n. a-Oxyhemoglobin of the Porcujiinc (Kr<tlii^n ilurxiitim}. slmuiiii; first-formed talmlnr crysl:ils. 

 :;:;:!,:',:;:;. o-OxyheinoKlDliin and /J-Oxyhemoglobin of the Porcupine, slinwiii.i: 1'iiinllrs nf rlon^ited 

 lyi'c twins nf a-oxyhemoglobin and Iliick tnluilar crystnls nl ^-nxylic'iiuinlobin. 



334. |9-Oxyhemoglobin of the I'lU'Ciipine, shdwiiif; skeleton crystal appearanei'. 

 335, 3130. Same, showing large crystals in various orientations. 



