PLATE 2 
EXPLANATION OF FIGURES 
5 Photograph from a graft of the metanephric anlage after three days’ growth 
in the allantois. To illustrate early stages in development of nephric tubules. 
M.S., metanephric sphere with central cells radially arranged; S, S-shaped 
tubule; U.T., ureteric tubules. 
6 Photograph from a graft of the metanephric anlage after three days’ growth 
in the allantois. To illustrate development of Malpighian corpuscles. B.C., 
Bowman’s chamber; c., capillary; G., developing glomerulus; M.S., metanephric 
sphere; M.Y., metanephric vesicle; S., S-shaped tubule with distal end differ¬ 
entiating to form Bowman’s capsule; U.T., collecting tubule. 
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