CONNECTIVE TISSUE. 



259 



he proposed for their designation the rather alarming name of 

 bone-breakers " osteoklasts." 



The multinuclear bioplasson bodies were first described by 

 Robin under the title of " myeloplaxes." Virchow termed the 

 same formations " giant-cells " ; English authors, " myeloid 

 cells." They are, as I demonstrated in 1873 (see chapter on 

 inflammation), the bioplasson formations of the bone-tissue itself , 

 the territories of the basis-substance of bone, either after decalci- 

 fication and liquefaction of the basis-substance, or before the 

 formation of a territory of bone. (See Fig. 107.) 





FIG. 107. SURFACE OF THE SCAPULA OF A KITTEN. 

 CHROMIC ACID SPECIMEN. 



C, lamellated bone, with bone-corpuscles ; G, a single territory of bone-tissue liquefied, 

 resulting in the formation of a multinuclear plastid ; M, coalesced masses of multinuclear 

 plastids. Magnified 600 diameters. 



We see these bodies, not only in medullary spaces of all 

 juvenile bones, but also in the planes of absorption at the surface 

 of growing bones, beneath the periosteum, and in inflamed bone. 

 They certainly are not extraneous, but the medullary corpuscles 

 themselves, coalesced into larger layers for the production of 



