PLATE 3 
EXPLANATION OF FIGURES 
10 Transverse section of the gizzard in the region of the six cushions, showing 
the passage of the lower ends of the six muscle bands through the cushions to the 
needles on their surfaces. Flemming. Iron haematoxylin and picro-fuchsin. 
35 diam. 
11 Detail of the connection between the muscles and the needles of the 
cushions. It is shown that the striated fibers divide to fibrils, themselves stri- 
ated. These pass through the epithelium and become tendinous. The tendons 
cross the matrix of the intima and insert in the bases of the needles. Flemming. 
Tron haematoxylin and picro-fuchsin. 200 diam. 
12 Section through intima of a cushion, nearly parallel to surface, showing 
in transverse and diagonal section the tendons which traverse the intima. 
Zenker. Iron haematoxylin and picro-fuchsin. 90 diam. 
13. Surface view of a group of bristles of the cushions, showing the chitinous 
projections to which they are movably attached. 200 diam. 
14 Section through a tracheal tube which is filled with coagulated deposit, 
in which leucocytes may be seen. Flemming. Acid fuchsin. 350 diam. 
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