VOL. XLl, NO. 482 



FEBEUAKY, 1907 



THE 



AMERICAN 



NATURALIST 



A MONTHLY JOURNAL 

 DEVOTED TO THE NATTJEAL SCIENCES 

 IN THEIE WIDEST SENSE 



CONTENTS 



I. An automatic Aerating device for Aquaria . . . DE. LOXTIS MURBACH 61 

 n. The Flying-Fish Problem ..... LIEUT.- COL. C. D. DTTEN'rORD 65 

 ni. Cataloguing Museum Specimens .... PSOFESSOB L. B. WALTOH 77 



IV. Some South American Rotifers JAMES MURRAY 97 



V. Meristio Homologies in Vertebrates - J, S. ZINGSLEY 108 



VI. On the Osteology of theTubinares DR. R. W. SHTIFELDT 109 



Vn. Hotes and Literature : General Biology, Transmutation and Agriculture, 

 FormAnalysis; Geology. River Terraces at Brattleboro,Vt.;/l/J^Aro/jo%/, 

 Quaternary Remains of Man in Central Europe, Parian Races of the 

 Malay Peninsula, Growth of Parisian Children, Am! r, : rri I-t.i 

 on the Norwegians, Population of Tripoli; Zoology. 

 Wishes, Development of the Mammalian Lung, Half \ 

 Reptiles and Birds, Notes; tfoffl/j/. The Journals 25 



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