ECTODERMAL DERIVATIVES 



111 



The ectodermal origin of the fore- and hind-g\it has ah'eady been 

 discussed in the preceding chapter in connection with the development 

 of the alimentary canal. 



References 



Baden (1936, 1937), Butt (1934b), Carridre (1886), Cholodkowsky (1891), 

 Escherich (1902), Graber (1891), Hottes (1928), Janet (1899), Marshall (1935), 

 Nelsen (1931), Nelson (1914), Nusbaum (1883), Patten (1887, 1888), Pflugfelder 

 (1937), Pratt (1897), Riley (1904), Rittershaus (1925), Schaefer (1938), Sen (1939), 

 Sikes and Wigglesworth (1931), Snodgrass (1936), Stiles (1939), Tichomiroff (1879), 

 Toth (1935a), Viallanes (1891), Wheeler (1891a, 18936). 



See also list of general works cited in Chap. II. 



