l66 ALPHABETICAL COMPILATION 



Sulphur, 5''^. — (Green and Roth, 1953, Biol. Bull. 105 : 364) 



Temperature. — See under Cold, delay; and Heat, acceleration. 



Theobromine and Theophylline (Cheney, 1949 b). 



Thiurea. — (Bevelander, 1946). For Dendraster excentricus see Rulon (1950b). 



Toluyene Blue. — (Shapiro, 1948 a). 



Tyrosin. — (Mathews, 1909; King, 191 2). Slight acceleration in some cases with 

 weak solutions (Mathews, 1909). 



Ultraviolet Light. — See Ultraviolet Light. Cleavage and development delayed. 



Uranyl Nitrate. — (Villee, Lowens, et al., 1949). 



Urea. — (R. S. Lillie, 1903). 



Urethanes. — Carbamates. Anaesthetic doses given in Table 14. See under Anaes- 

 thetics. See Krahl, 1950, p. 199, and his Table VIII. 



Usnic Acid. — Antibiotic (Marshak and Harting, 1948; Marshak, 1949 a; Marshak 

 and Fager, 1950). 



Vitamin C. — Ascorbic acid (Shapiro, 1948 c). 



Washing Eggs Repeatedly. — Delays cleavage (F. R. Lillie, 1914; Woodward, 1918; 

 et al.). 



X-Rays. ^Cleavage and development delayed. See X-Rays. 



COELOMIC FLUID 



See Perivisceral Fluid 



COMPOSITION OF EGGS 



For general analyses of centrifuged layers of crushed eggs, see Table 7 (McClendon, 

 1909 a). 



Solids. — 26.5 % (Ballentine, 1940a) ; 23.9 % (Hutchens, Keltch, et al., 1942). 



Ash. — 8.5-10 % dry weight eggs (Page, 1927b) ; 7-8 % (Blanchard in E. N. Har- 

 vey, 1932 a). 



Electrolytes. — In millimoles per kilogram water in eggs, calculated by Rothschild 

 and Barnes (1953) : Na 321, K 354, Ca 269, Mg 1044, CI" 30, sulphate 0.0301 (Page, 

 1927b); K 96, Ca 38, Mg 17 (Blanchard, quoted by E. N. Harvey, 1932a). For 

 Arbacia lixula; Na 280, K 162, Ca 16, Mg 41, CI 384 (Bialaszewicz, 1929); Ca 17, 

 Mg 21 (Monroy-Oddo, 1946). For other species, especially Paracentrotus lividus, sec 

 Rothschild and Barnes (1953). 



Sea Water Electrolytes. — Millimoles per kilogram) for 19 per thousand salinity are: 

 Na 475, K 10, Ca ( + Sr) 10, Mg 54 CI 554, sulphate 29 (Rothschild and Barnes, 



1953)- 



Iron. — 0.030 mg. per 10^ eggs; 0.0005 rnillimoles (Page, 1927b). 



Copper. — i7jxg. percc. of unripe ovarian eggs; 175 [ig. per cc. of unfertilized and 

 21 (jLg. per cc. of fertilized eggs (Glaser, 1923). 



Total Phosphorus. — In millimoles per kilogram water in eggs is 181 (Page, 1927b). 

 For Arbacia lixula 132 (Bialaszewicz, 1929). For other species see Rothschild and 

 Barnes (1953). See also Phosphorus Metabolism for phosphorus fractions of egg. 



Total Nitrogen. — 0.107 "^g- P^^" ^-E- ^'"7 weight (Ballentine, 1940 a); o.io mg. Nj 

 per mg. dry weight (Hutchens, Keltch, et al., 1942). See Nitrogen. 



Total Protein. — 65 % dry weight (Hutchens, Keltch, et al., 1942). See Protein and 

 Nucleoprotein. 



Total Fat. — See Oil and Lipids. 



Carbohydrate. — 50 mg. (Perlzweig and Barron, 1928); iio mg. acid hydrolyzable 

 carbohydrate determined as glucose (7 % of dry egg weight) per gm. egg protein, 

 of which 46% is glycogen (Hutchens, Keltch, et al., 1942). Practically none from 

 jelly. Glycogen content, 50-80 mg. per gm. egg protein (Blanchard, 1935). See 

 Carbohydrate Metabolism. 



