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'16 The Electrical Conductivity of Echinoderm Eggs and its Bearing on the 

 Problems of Fertilization and Artificial Parthenogenesis. Phil. Trans. 

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'22 A Critical Study of the Facts of Artificial Fertilization and Normal Fer- 

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 Harvey, E. N. 



'10 The Mechanism of Membrane Formation and other early Changes in 

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'14 Is the Fertilization Membrane of Arbacia Eggs a Precipitation Membrane? 



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 Heilbrunn, L. V. 



'13 Studies in Artificial Parthenogenesis. I. Membrane Elevation in the Sea- 

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'15 -Studies, etc. II. Physical Changes in the Egg of Arbacia. BIOL. BULL., Vol. 

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'203 An Experimental Study of Cell-division. I. The Physical Conditions 

 which Determine the Appearance of the Spindle in Sea-urchin Eggs. 

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'2ob Studies, etc. III. Cortical Change and the Initiation of Maturation in 

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'2oc The Physical Effect of Anesthetics upon Living Protoplasm. BIOL. BULL. 



Vol. 39, PP- 307-3I5- 

 '21 Protoplasmic Viscosity Changes during Mitosis. Jour. Exp. Zool., Vol. 34, 



pp. 417-447. 

 Herbst, C. 



'93 Ueber die kiinstliche Hervorrufung von Dottermembranen an unbefruchte- 



ten Seeigel Eiern nebst einigen Bemerkungen iiber die Dotterhautbildung 



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 '04 Uber die kunstliche Hervorrufung von Dottermembranen an unbefruchte- 



ten Seeigeleiern. Mitth. Zool. Stat. Neapel, Vol. 16, pp. 445-457. 

 Hertwig, O. 



'78 Beitrage zur Kenntniss der Bildung, Befruchtung, und Theilung des thier- 



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 Just, E. E. 



'19 The Fertilization Reaction in Echinarachnius parma. I. Cortical Response 



of the Egg to Insemination. BIOL. BULL., Vol. 36, pp. i-io. 

 '20 The Fertilization Reaction, etc. IV. A Further Analysis of the Nature of 



Butyric Acid Activation. BIOL. BULL., Vol. 39, pp. 280-305. 

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of a Period of Special Susceptibility to Hypotonic Sea-water. Amer. 



Jour. Physiol., Vol. 61, pp. 516-528. 

 '23 The Fertilization Reaction, etc. VI. The Necessity of the Egg Cortex for 



Fertilization. BIOL. BULL., Vol. 44, pp. 1-9. 

 Lillie, F. R. 



'06 Observations and Experiments concerning the Elementary Phenomena of 



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