44 8 ENTOMOLOGY 



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Urech, F. 1892. Beobachtungen iiber die zeitliche Succession der Auf- 

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Urech, F. 1892. Ueber Eigenschaften der Schuppenpigmente einiger 

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Weismann, A. 1892, 1898. The Germ-Plasm. Trans, by W. N. Parker 

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Dixey, F. A. 1893. On the phylogenetic significance of the variations 

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Merrifield, F. 1893. The yeffects of temperature in the pupal stage on the 

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Poulton, E. B. 1893. The Experimental Proof that the Colours of certain 

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Urech, F. 1893. Beitrage zur Kenntniss der Farbe von Insektenschuppen. 

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Bateson, W. 1894. Materials for the Study of Variation treated with 

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Dixey, F. A. 1894. Mr. Merrifield's Experiments in Temperature- Varia- 

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Hopkins, F. G. 1894. The Pigments of the Pieridae. Proc. Roy. Soc. 

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Kellogg, V. L. 1894. The Taxonomic Value of the Scales of the Lepidop- 

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Merrifield, F. 1894. Temperature Experiments in 1893 on several species 

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Hopkins, F. G. 1895. The Pigments of the Pieridae: A Contribution to 

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Spuler, A. 1895. Beitrag zur Kenntniss des feineren Baues und der Phy- 

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Standfuss, M. 1895. On the Causes of Variation and Aberration in the 

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