BONE. 



[ 110 ] 



Fig. 68. 



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BONE. 



Fig. 69. 









It 









-i 

 7A 



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 J 



i 



^''■' .1,, 



r<< 



.^^ 



J 



^w. ■■■'■'■" 



Magnified 300 diameters. 

 Part of a transverse section of the shaft of the hnmerns. 

 o, Haversian canals; 6, c, d, lacuna with theii' canaliculi. 



■.'■i^^Ji 



Magnified 350 diameters. 



Portion of the outer surface of the tibia of a calf. 

 The dots represent the orifices of the canaliculi, 

 the larger dark indistinct spots are their lacuii89 

 Been through the osseous substance. 



Fig. 70. 



Magnified 350 diameters. 



Cartilage of bone, after boiling in water, n, la- 

 cunar corj useles ; 6, nuclei. 



Fig. 71. 



1 





Magnified ih(\ diameters. 



Ijacunne (surface view) with the cannliiuli, from (he parietal hone. The dot?i seen 

 tipon or between the lacunrp rc]iresent divided cnnaliculi, or their orifices opening 

 into the lacunee; a, a, a, groups of transversely divided canaliculi. 



