138 



SCIENCE 



[N. S. Vol. XLIII. No. 1100 



Jeanroy; French Literature of the Middle 

 Ages, by Alfred Jeanroy; Modern French 

 Literature, by Gustave Lanson; Italian, by 

 Henri Hauvette; Spanish, by Ernest Martin- 

 enche; English, by Emile Legouis; German, 

 by Charles Andler; Juridical and Political 

 Science, by F. Larnaude; Economics, by 

 Charles Gide. 



Each chapter is followed by a well-chosen 

 bibliography of the great French works within 

 its iield, and the work is embellished by por- 

 trait illustrations, Pasteur having been selected 

 for the frontispiece of Volume I., and Eenan 

 for Volume II. The press work, while without 

 any luxurious quality, is dignified and in the 

 best French taste. 



Wm. H. Hobbs 



University of Michigan 



SCIENTIFIC JOURNALS AND ARTICLES 



The December number (Vol. 22, ISTo. 3) of 

 The Bulletin of the American Mathematical 

 Society contains : " Concerning absolutely 

 continuous functions," by M. B. Porter ; " On 

 the representation of numbers in the form 

 x^-\-y^-{-z^ — Sxyz," by R. D. Carmichael; 

 " On the linear continuum," by R. L. Moore ; 

 " A problem in the kinematics of a rigid body," 

 by Peter Field ; " Jules Henri Poincare " (re- 

 view of Enquete de " I'Enseignement Mathe- 

 matique " sur la Methode de Travail des 

 Mathematiciens, second edition, and Lebon's 

 Notice sur Henri Poincare and Savants du 

 Jour: Henri Poincare, second edition), by E. 

 C Archibald; "Shorter ITotices"; Breslieh's 

 First- Year Mathematics for Secondary 

 Schools, by D. E. Smith; Braude's Coordon- 

 nees intrinseques, by E. C. Archibald; Chate- 

 let's Logons sur la Theorie des Nombres, by 

 E. B. Skinner; Salmon's Treatise on the Ana- 

 lytic Geometry of Three Dimensions, fifth edi- 

 tion, volume 2, by Virgil Snyder; Hermann 

 Grassmann's gesammelte mathematische und 

 physikalische Werke, Band 3, by E. B. Wilson; 

 " ISTotes ; " and " !N"ew Publications." 



The January number (Vol. 22, ISTo. 4) of 

 the Bulletin contains : Eeport of the October 



meeting of the society, by F. ]Sr. Cole; Eeport 

 of the twenty-seventh regular meeting of the 

 San Francisco Section, by Thomas Buck; 

 " Transformation theorems in the theory of 

 the linear vector function," by V. C. Poor; 

 Eeview of Hobson's John Napier and the In- 

 vention of Logarithms, 1614, and Gibson's 

 Napier and the Invention of Logarithms, by 

 E. C. Archibald; Eeview of Moritz's Memora- 

 bilia Mathematica, by E. C. Archibald; 

 " Shorter Notices " ; Hill's Development of 

 Arabic Numerals in Europe, by D. E. Smith; 

 Caimt's Introduction to the Infinitesimal Cal- 

 culus, by T. E. Mason; Lenz's Die Eechen- 

 maschinen und das Maschinenrechnen and 

 Furtwangler and Euhm's Mathematische 

 Ausbildung der deutschen Landmesser, by E. 

 W. Ponzer; Dickson's Algebraic Invariants, 

 Borel's Legons sur la Theorie des Fonctions, 

 second edition, Bateman's Mathematical Anal- 

 ysis of Electrical and Optical Wave-Motion 

 on the Basis of Maxwell's Equations, and 

 Eutherford's Eadioaetive Substances and 

 their Eadiations, by E. D. Carmichael; 

 " Notes " ; and " New Publications." 



SPECIAL ARTICLES 



THE POISONOUS EFFECTS OF THE ROSE 

 CHAFER UPON CHICKENS 



Serious losses have occurred each year dur- 

 ing June and early July, from chickens hav- 

 ing eaten the rose chafers (Macrodatylus suh- 

 spinosus). These losses have often been 

 ascribed to various causes, but close observa- 

 tions have shown that the chickens are very 

 fond of eating these insects in large numbers, 

 and post-mortem examinations have revealed 

 the presence of many undigested insects in 

 their crops. The crops are usually so full 

 as to give the impression that death had 

 been due to a " crop bound " condition of 

 the chickens. Some have also supposed that 

 these deaths were due to a mechanical injury 

 of the crop by the spines on the legs of the 

 insects having punctured the lining of this 

 part of the digestive system, while others have 

 accounted for the death of these chickens by 

 the rose chafers having bitten the crops. 



A number of cases, some of which resulted 



