58 
Proceedings of the Koyal Society of Edinburgh. [Sess. 
REFERENCES TO LITERATURE. 
(1) Bet he, A., Arch. f. mikr. Anat ., Bd. 50, 1897, p. 515. 
(2) Hewitt, C. Gordon, “Ligia,” LM.B.C. Memoirs , xiv, 1907, p. 4. 
(3) Stebbing, T. R. R., u A History of Crustacea,” Internat. Sci. Ser., London, 
1893, p. 421. 
(4) Stewart, Dorothy A., Mem. and Proc. Manchester Lit . and Phil. Soc., 
vol. lviii, 1913, pp. 1-12. 
(5) Ta it, J., Quart. Journ. Exper. Physiol ., vol. iii, 1910, pp. 1-20. 
(6) Tait, J., Proc. Physiol. Soc., pp. xl-xli, Journ. Physiol., vol. xl, 1910. 
(7) Tait, J., Journ. Mar. Biol. Assoc., vol. ix, 1911, pp. 191-198. 
(8) Wintebstein, H., Handb. d. vergl. Physiol., Bd. i, 2te Halfte, 1912, pp. 1-20. 
& 
( Issued separately April 9, 1917.) 
