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25. Lewis, W., Bull. Johns Hopkins Hosp. 49:29 36 (1931). Locomotion of lympho- 

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26. Lewis, W. H., in Structure of Protoplasm (Seifriz, ed.) (1942). Ames, Iowa, Iowa 

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27. Marsland, D. a., /. Cell. & Comp. Physiol. 4:9-33 (1933). Oil capping and 

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28. Marsland, D. A., in Structure of Protoplasm (Seifriz, ed.) (1942). Ames, Iowa, 

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29. Marsland, D. A., Biol. Bull. 87:252-261 (1944). Pressure effect on gel-sol in 

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30. Marsland, D. A., and Brown, D. E. S., /. Cell. & Comp. Physiol. 8:167-178 

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31. Mast, S. O., /. Morph. 41:347-425 (1926). Structure, movement, locomotion and 

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32. Mast, S. O., /. Exper. Zool. 51:97-120 (1928). Factors inHuencing form in 

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33. Mast, S. O., Protoplasma 8:344-377 (1929). Conditions for attachment. Amoeba. 



34. Mast, S. O., Protoplasma 14:321-330 (1931). Locomotion in Amoeba proteus. 



35. Mast, S. O., Ztschr. vergl. Physiol. 15:139-147 (1931). Action of light on amoeba. 



36. Mast, S. O., Ztschr. vergl. Physiol. 15:309-328 (1931). Action of electricity on 

 amoeba. 



37. Mast, S. O., Physiol. ZooL 7:470-478(1934). Locomotion in Pelomyxa palustris. 



38. Mast, S. O., and Doyle, W. L., Protoplasma 20:555-560 (1934). Intake of fluid 

 by amoeba. 



39. Mast, S. O., and Prosser, C. L., J. Cell. & Comp. Physiol. 1:333-354 (1932). 

 Effects of temperature, salts, pH, on locomotion and gel-sol ratio, Amoeba. 



40. Mast, S. O., and Root, F. M., /. Exper. Zool. 21:33-50 (1916). Surface forces in 

 feeding amoebae. 



41. Nonms, C. H., J. Cell. ^T Comp. Physiol. 16:313-322(1940). Elasticity of myxo- 

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42. Pantin, C. F. a., ;. Mar. Biol. Ass. U. K. 13:24-69 (1923). Locomotion in a 

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43. Pantin, C. F. A., /. Exper. Biol. 1:519-538 (1924). Effects of temperature; ihid. 

 3:275-295 (1926). Effects of calcium; ihid. 3:297-312 (1926). Effects of mag- 

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44. Pitts, R. F., Biol. Bull. 64:418-423 (1933). Relation between rate of locomotion 

 and form in Amoeba. 



45. Pitts, R. F., and Mast, S. O., /. Cell. & Comp. Physiol. 3:449-462 (1933). 

 Effects of pH; ihid. 4:237-256 (1934). Effects of single salts; ihid. 4:435-455 

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46. Rhumbler, L., Ztschr. wiss. Zool. 83:1-52 (1905). Fountain currents in Amoeba 

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47. Schaeffer, A. A., Amoeboid Movement (1920). Princeton Univ. Press. 156 p. 



48. Schmidt, W. J., Die Doppelbrechung von KarA'oplasma, Zytoplasma und Meta- 

 plasma (1937). Berhn, Borntraeger. pp. 124-128. Birefringence in axopods, 

 Heliozoa. 



49. ScHwiTALLA, A. M., /. Morph. 39:465-509 (1924). Temperature on locomotion, 

 Amoeba proteus. 



50. Speidel, C. C, /. Exper. Zool. 61:279-331 (1932). Streiitr.ing movements in 

 nerve fibers. 



51. Thornton, F. E., Physiol. Zool. 5:246-253 (1932). Temperature and viscosity of 

 Amoeba. 



52. TiEGs, O. W., Protoplasma 4:88-139 (1928). Surface tension theory of amoeboid 

 movement. 



53. Weiss, Paul, Growth Symposium 3:163-203 (1941). Protoplasmic How in nerve 

 fibers. 



