PLATE 43 





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258 



.iil. Oxyhemoglobin of the Bharal >rix raoAuro), showing nt-t work of |>risin> ]iriincr.i I>\- 

 2.">t. SLUIIC, .sliowiiif; liarreil eft'cot pnjiluccil mi prisms l>y tvvinniiifr. 

 , 2.">ti. SMIIIC, sliciuini; isolated pentason twins in various as]cts. 

 , 258. Same, slioxviii;; pL-ntafion twins frrowiiif; on ami capiiiiiL; prisms. 



