Zoologie. — Amphibia. — Pisces. — Mollusca. 469 



6553 Malcolm, G., and Maxwell, A., Grouse and Grouse Moors. London 4 910. 8. 

 196 pg. with illustrations. clotb. Mark 8 



6554 Pearl, R., and Cnrtls, M. R., Studies on the Physiology of Reproduction in the 

 Domestic Fowl. III: Gase of incomplete hermaproditism. (Boston, Biol. Bull.) 



4 909. roy. 8. 4 4 pg. with I plates. Uo 



6555 Westell, W. P., British Nesting Birds. Complete record of every species which 

 nests in the British Isles. London 4 94 0. 8. 4 30 pg. with figures. cloth. 46o 



Amphibia. 



6556 GogGTZa, J., Estudio anatomico de la piel del Gallipato (Pleurodeles Waltlii Mich.). 

 Madrid (Mem. Soc. Hist. Nat.) 4 909. gr. in-8. 37 pg. av. 3 planches coloriöes. 3 



6557 Mietens, H., Entstehung der weissen Blutkörperchen und der Milz bei Bufo 

 vulgaris. (Jena, Zeitschr. Naturw.) 4 94 0. gr. 8. 61 pg. m. 2 kolorirten Tafeln. 



Pisces. 



6558 Brohl, E., Die sog. Hornfäden und die Flossenstrahlen der Fische. Jena 4 909. 

 8. 36 pg. 1 



6559 Downing, S. W., Clark, F. N., and Reighard, P., Plan for promoting the White- 

 fish Production of the Great Lakes. Washington (Bull. Bur. Fish.) 4 94 0. 4. 69 pg. 

 with 5 figures. 1 B0 



6560 Fage, L., Recherche sur les Stades pölagiques de quelques T616ost6ens de la Mer 

 de Nice (parages de Monaco) et du Golfe du Lion. Monaco (Ann. Inst. Ocäanogr.) 

 4 94 0. gr. in-4. 53 pg. av. 4 planche et 39 figures. 



6564 Fish and Fish EggS. — Distribution of Fish and Fish Eggs during the fiscal 

 year 4 909. Washington (Bur. Fisher.) 4 94 0. 8. 4 03 pg. 2 



6562 Button, J. A., Salmon Scale Examination and its practical Utility. Manchester 

 4 94 0. 8. 54 pg. with 31 plates. cloth. 3 



6563 Martin, J. W., My Fishing Days and Fishing Ways. Cheaper edition. London 

 494 0. 8. 206 pg. with figures. bd. 2 



6564 — Pike and Perch Fishing. Cheaper edition. London 4 94 0. 8. 4 68 pg. bd. 4 50 



6565 Report, 27. annual, of the Fishery Board of Scotland for the year 4908. Part 3. 

 Glasgow 4 94 0. 8. 1 



6566 Smith, H. M., The United States Bureau of Fisheries, its Establishment, Functions, 

 Organization, Resources, Operations, and Achievements. Washington (Bull. Bur. 

 Fish.) 494 0. 4. 47 pg. with 4 4 plates. 3 



6567 Stevenson, C. H., International Regulations of the Fisheries of the High Seas. 

 Washington (Bull. Bur. Fish.) 4 94 0. 4. 78 pg. 1 



6568 Titcomb, J. W., Fish-cultural Practices in the U. Bureau of Fisheries. Washington 

 (ibid.) 4 94 0. 4. 64 pg. with 4 3 plates and 4 3 figures. 3 



6569 Vogel, R., Entwicklung des Schultergürtels und des Brustflossenskelettes der 

 Forelle (Trutta fario). Jena 4 909. 8. 46 pg. Ise 



6570 WatSOn, W. J., Salmon and Trout Fishing in Ireland. Dublin 4 94 0. 41. 208 pg. 3 



M 1 1 n s c a. 



6574 Dali, W. H., Report on a Collection of Shells from Peru. With summary of the 

 Littoral Marine Mollusca of the Peruvian Zoological Province. Washington (Proc. 

 Nation. Mus.) 4 94 0. 8. 4 47 pg. with 9 plates. 5 



6571 Kleinert, M., Die Spermatogenesis von Helix (Tachea) nemoralis und hortensis. 

 Jena 4 909. 8. 54 pg. m. 12 Figuren. Iso 



6573 Krahelska, M., Ueber den Einfluss der Winterruhe auf den histologischen Bau 

 einiger Landpulmonaten. (Jena, Zeitschr. Naturw.) 4 94 0. gr. 8. 81 pg. m. 3 Tafeln 

 u. 4 Figuren. 



6574 Semper, C, Wissenschaftliche Resultate seiner Reisen im Archipel der Philip- 

 pinen: Landmollusken. Ergänzungen u. Berücksichtigungen von O. F. v. Möllen- 

 dorff, fortgesetzt von W. Kobelt u, G. Winter. Teil II. Heft 9. Wiesbaden 

 4 94 0. gr. 4. pg. 4 85—200 m. 4 kolorirten Tafeln. 14 



Verzeichnis des bisher Erschienenen — siehe Nr. 5663. 



Naturae Novitates. Jahrg. XXXII, No. 19. R. Friedländer & Sohn in Berlin, 



