RECORDS- VOLUME XI, JAN., 1919. 5 



Fig. 1. (page 4) Larynx and portion of Syrinx of Gan- 

 net. A, larynx, b, base of Y-shaped bone; e, septum; B, 

 section of larynx : b, base of Y-shaped bone ; figure above 

 B, portion of syrinx ; b, d, d, bronchial tubes; c, position 

 of fatty bodies : o, angle of bronchial tubes. 



tation or special enlargement anywhere. It 

 measures 11.50 to the syrinx. The sterno- 

 tracheals, fig 11, s, s, are well developed and 

 there is a thin strip of a bronchialis arising 

 at base of the lower side of the sterno-tra- 

 cheals extending over the two upper bron- 

 chial semirings, fig. 11, b. e. Below theae 

 muscles, adhering to the syrinx, are two sin- 

 gular, hemispherical bodies, pale yellow in 

 color, ficr, 11^ A. c, c, where a view of the 

 lower side is given, which have been con- 

 sidered by some authors as vestiges of a sec- 

 ond pair of thyroid glands; but I am inclined 

 to think them shrunken thymus glands, as 

 they contain oily matter and as the thymus 

 glands are enormously developed in young 

 of this gannet. The matter can be easily set- 

 tled by examining young Gannets when a 

 day old and at intervals later to note the 



