30 Gen. Sub . 
I. GENERAL SUBJECTS. 
444. Meyer, A. B. How was Wallace led to the discovery of natural 
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445. Meyer, O. Cellulare UntersuchungenanNematoden-Eiern. Jena. 
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445a. Meyer, R. Die . chemiscke Synthese : ihre Bedeutung f Ur die 
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446. Miall, L. 0. The natural history of aquatic insects. Illustrations 
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447. Miers, H. A., & Andrewes, F. W. Louis Pasteur. Nat. Sci. vii, 
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448. Millais, J. G. A breath from the Yeldt. London : x & 236 pp., 
many plates and figs. 
449. Minot, C. S. Ueber die Vererbung und Yerjiingung. Biol. 
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450. -. The fundamental diiferouce between plants and animals. 
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451. Mitrophanow, P. Note sur la division des noyaux de l’etat 
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452. ° . [Ueber die Centrosomen in lebenden Zellen.] [In Russian.] 
Trav. Soc. Varsovie, vi, pp. 10 & 11. 
453. ° — — . [Ueber die Betheiligung des Ectoderms an der Bildung der 
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454 o [Neue Beobachtungen fiber die Priinitivanlage des peripher- 
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455. Mitsukuri, K. Experimental study of meroblastic Vertebrate 
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456. MObius, K. Die aesthetische Betrachtung der Thiere. SB. Ak. 
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457. Moenkuaus, W. J. Variation of Etheostoma cuproiles. P. Indiana 
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458. Mollirr, S. Die paarigen Extremitaten der Wirbeltiere. ii. Das 
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459. Monaco, Albert I., Prince de, & de Guerne, Baron J. 
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460. Montgomery, E. To be alive, what is it? The Monist. v, pp. 166- 
191. 
