Fic. XIV.— Proximal extremity of the tibia, showing extensive osteo-porosis. A, Marrow 
cells. B, Osteoclasts (giant cells). C, Bone matrix. D, Lacune, in which canaliculi are absent, 
bone cell having undergone almost complete atrophy. F, Howship’s lacune. This drawing is 
made from the same section as Fig. XIII, Case V. X, 450. 
the tibia, showing extensive osteo porosis. A, Lacunz, 
C, Bone cell. D, Bone matrix (trabeculz). E, Line of 
Fic. XV. — Proximal extremity of 
B, Canaliculi extensively atrophied. 
contact between bone and marrow. 
and F. X, goo. 
F, Marrow cells. X, Marrow cavity; note similarity of C 
