620 BIOLOGICAL EFFECTS OF RADIATION 



148a. Mast, S. O. Mechanics of locomotion in Amoeba. Proc. Nation. Acad. Sci. 9 : 

 258-261. 1923. 



149. Mast, S. O. The process of photic orientation in the robber-fly, Proctacanthus 

 Philadelphicus. Amer. Jour. Physiol. 68 : 262-279. 1924. 



150. Mast, S. O. Photic orientation in insects. Amer. Nat. 60: 479-482. 1926. 



151. Mast, S. O. Reactions to light in Volvox, with special reference to the process 

 of orientation. Zeitsch. Vergl. Physiol. 4: 637-658. 1926. 



151a. Mast, S. O. Structure, movement, locomotion, and stimulation in Amoeba. 

 Jour. Morph. and Physiol. 41: 347-425. 1926. 



152. Mast, S. O. Reversal in photic orientation in Volvox and the nature of photic 

 stimulation. Zeitsch. Vergl. Physiol. 5 : 730-738. 1927. 



152a. Mast, S. O. Structure and function of the eye-spot m unicellular and colonial 

 organisms. Arch. Protistenk. 60: 197-220. 1927. 



153. Mast, S. O. The nature of response to light in Amoeba proteus (Leidy). 

 Zeitsch. Vergl. Physiol. 15: 139-147. 1931. 



153a. Mast, S. O. The nature of the action of electricity in producing response and 

 injury in Amoeba proteus (Leidy) and the effect of electricity on the viscosity 

 of protoplasm. Zeitsch. Vergl. Physiol. 15: 309-328. 1931. 



1536. Mast, S. O. Movement and response in Difflugia with special reference to 

 the nature of cytoplasmic contraction. Biol. Bull. 61: 223-241. 1931. 



154. Mast, S. O. Localized stimulation, transmission of impulses, and the nature of 

 response in Amoeba. Physiol. Zool. 5: 1-15. 1932. 



155. Mast, S. O. Locomotion in Amoeba proteus (Leidy). Protoplasma 14: 

 321-330. 1931. 



156. Mast, S. O. The rate of adaptation to light and to darkness in Volvox globator. 

 Zeitsch. Vergl. Physiol. 17: 644-658. 1932. 



157. Mast, S. O., and W. L. Dolley, Jr. The relation between the stimulating 

 efficiency of intermittent light and the length of the light and the dark periods. 

 Amer. Jour. Physiol. 71: 163-173. 1924. 



158. Mast, S. O., and W. L. Dolley, Jr. The relation between the stimulating 

 efficiency of intermittent and continuous light. Amer. Jour. Physiol. 72: 

 84-88. 1925. 



159. Mast, S. O., and Mary Gover. Relation between intensity of light and rate 

 of locomotion in Phacus pleuronectes and Euglena gracilis and its bearing on 

 orientation. Biol. Bull. 43 : 203-209. 1922. 



160. Mast, S. O., and H. R. Hulpieu. Variation in the response to light in Amoeba 

 proteus with special reference to the effects of salts and hydrogen-ion concen- 

 tration. Protoplasma 11: 412-431. 1930. 



161. Mast, S. O., and P. L. Johnson. Orientation in light from two sources and its 

 bearing on the function of the eye-spot. Zeitsch. Vergl. Physiol. 16 : 252-274. 

 1932. 



162. Mast, S. O., and C. L. Prosser. Effect of temperature, salts, and hydrogen-ion 

 concentration on rupture of the plasmagel sheet, rate of locomotion, and gel /sol 

 ratio in Amoeba proteus. Jour. Cell, and Comp. Physiol. 1: 333-354. 1932. 



163. Mast, S. O., and L. C. Pusch. Modification of response in Amoeba. Biol. 

 Bull. 46 : 55-59. 1924. 



164. McClendon, J. F. Protozoan studies. Jour. Exp. Zool. 6 : 265-287. 1909. 



165. Merker, E. Die Empfindlichkeit feuchthautiger Tiere im Lichte. Zool. 

 Jahrb. 42: 1-174. 1925. 



166. Merker, E. Die EmpfindHchkeit feuchthautiger Tiere im Lichte. II. Warum 

 kommen Regenwiirmer in Wasserlachen um and warum verlassen sie bei Regen 

 ihre Wohnrohren? Eine licht- und atmungsbiologische Studie. Zool. Jahrb. 

 42 : 487-555. 1926. 



