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 WILLACH, PAUL 1888 Beit rage zur Entwicklung der Lunge bei Saugethieren. 



23 pp, 8. Osterwieck, Harz; A. W. Zickfeldt. 

 WILLIAMS, J. LEON 1896 On the formation and structure of dental enamel. 



The Dental Cosmos, vol. 38, pp. 101-127. 



WOLBACH, S. B. AND HoNEU, JAMES A. 1914 A critical review of the bacteri- 

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Saugetiere. Sitzungsb. d. Gesellsch. z. Beford. d. ges. Natur. zu 



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1891 Ueber die Unterkieferdriise einiger Sauger. 1 Anat. Teil. 



Habilitationsschrift, Marburg, 32 pp. 



ZUSCHLAG, EMIL 1903 Le rat migratoireet sa destruction rationnelle. Copen- 

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ADDENDA 



Titles of papers which appeared while this volume was in press or which had 



been overlooked. 



BARBER, ALDA GRACE 1915 The localization of sound in the white rat. J. 



Animal Behavior, vol. 5, pp. 292-311. 

 BRtrMPT, E. 1907 Phdnomenes de la parturition chez le rat blanc. Bull. Soc. 



Zool., France, vol. 32, pp. 50-52. 

 CONROW, SARA B. 1915 Taillessness in the rat. Anat. Record, vol. 9, pp. 777- 



783. 



