Structural Differentiation of Cytoplasm 107 



In the original were six blind men. I shall list only four, 

 leaving the reader to complete the number as he sees fit: 



case 



It was four fundamentalists to learning much inclined, 



Who went to see the Protoplast (though all of them were blind) 



That each its structure might observe to satisfy his mind. 



The first advancing hurriedly and happening to fall 

 Right through its soft interior at once began to bawl 

 "God bless me! But the Protoplast is very like a sol." 



The second poked the animal and felt his staff repel 

 Its tough and springy cortex, so he began to yell 

 •• 'Tis evident the Protoplast is very like a gel." 



The third approaching gingerly did only pinch and squeeze 

 Its slippery oleaginous hide when he began to wheeze 

 "It seems to me the Protoplast is just a lump of grease." 



The fourth man, having punched and probed and proved its plastic state, 



Watery yet indissoluble, did thus asseverate 



"The Protoplast is a compound, complex co-a-cerv-ate." 



And so these fundamentalists disputed loud and long 



Each in his own opinion exceeding stiff and strong, 



Though each was partly in the right and all of them were wrong. 



SOME KEY REFERENCES 



BuNGENBERG DE JoNG, H. G. (1936) "Actualites Scientifiques et Industriellesl" 



Exposes de Biologie, La Coacervation 6 and 7. 

 AND J. Bonner. (1935) "Phosphatide auto-complex coacervates, etc." 



Protoplasma 24, 198. 

 Chambers, R. (1938) "The physical state of protoplasm with special reference 



to its surface." Amer. Nat. 72, 141. 



AND K. HoFLER. (1931) "Micrurgical Studies on the tonoplast of 



Allium cepa." Protoplasma 12, 338. 

 Frey-Wyssling, a. (1938) "Submikroskopishe morphologie der protoplasmas 



und seiner derivate." Protoplasma monograph. 



Plowe, J. K. (1931) "Membranes in the plant cell." Protoplasma 12, 196. 



Scarth, G. W. (1927) "Structural organization of protoplasm in the light of 

 Micrurgy." Protoplasma 2, 189. 



Scarth. G. W., J. Levitt, and D. Siminovitch. (1940) "Plasma membrane struc- 

 ture in the light of frost hardening changes." Cold Spring Harbor 

 symposium 8, 102. 



Siminovitch, D., and J. Levitt. (1941) "Relation between frost injury and physi- 

 cal state of protoplasm, ii. The protoplasmic surface." Can. Jour, of 

 Research, 19, 9. 



Schmidt, W. J. (1937) "Die doppelbrechung von karyoplasma, zytoplasma und 

 metaplasma." Protoplasma monograph. 



