134 THE BIOLOGY OF MARINE ANIMALS 



acetylcholine in nervous tissues and its action on the decapod heart," 

 ibid., 16, 198 (1939). 



134. Welsh, J. H., "Marine invertebrate preparations useful in the bioassay of 

 acetylcholine and 5-hydroxytryptamine," Nature, 173, 955 (1954). 



135. Welsh, J. H. and Slocombe, A. G., "The mechanism of action of acetyl- 

 choline on the Venus heart," Biol Bull, 102, 48 (1952). 



136. Welsh, J. H. and Taub, R., "The action of choline and related compounds 

 on the heart of Venus mercenaria," ibid., 95, 346 (1948). 



137. Wolf, H., "Uber die Genauigkeit der Herztatigkeit in der Tierreihe," 

 Pfliig. Arch. ges. Physiol, 244, 181 (1940). 



138. Wolf, H., "Uber die Beeinflussung der Kreislauftatigkeit bei Amphioxus 

 lanceolatus Y," ibid., 244, 736 (1941). 



139. Wood, F. D. and Wood, H. E. II, "Autotomy in decapod Crustacea," 

 /. Exp. Zool, 62, 1 (1932). 



140. Yeager, J. F. and Tauber, O. E., "On the haemolymph cell counts of 

 some marine invertebrates," Biol Bull, 69, 66 (1935). 



141. Zacks, S. I. and Welsh, J. H., "Cholinesterase and lipase in the amoebo- 

 cytes, intestinal epithelium and heart muscle of Venus,''' ibid., 105, 200 (1953). 



142. Zuckerkandl, E., "Coelomic pressures in Sipunculus nudus" ibid., 98, 

 161 (1950). 



143. Zunz, E., "De la teneur en fibrinogene du plasma chez les Poissons," 

 Bull. Acad. Belg. CI Scl, 19, 929 (1933). 



144. Zunz, E., "Contribution a l'etude de la coagulation du sang chez les 

 Poissons," ibid., 19, 938 (1933). 



145. Zunz, E., "La tension superficielle du plasma etc., chez quelques animaux 

 marins," ibid., 19, 1107 (1933). 



