214 MISS M, POOLE ON THE DEVELOPMENT OF THE  [ Mar, 2, 
Text-fig. 26. 
\ , 
Wd 0 } io < 
Pppm. Pn.rs. Ht. ‘Es. “st > 
Transverse section of a chick of 7 days’ incubation, through the posterior part of the 
pericardium and anterior part of the liver; anterior face. 
Text-fig. 27. 
Longitudinal vertical section of a chick of 7 days’ incubation, taken a little to the 
left of the middle line; seen from the right side. 
