154 ENTOMOLOGICAL NEWS. [June, 



produced from Wheeler (p. 355), that the embryonic number of Malpighian 

 tubules in Ephemeridea and Odonata has not been ascertained. In the 

 latter group the number is three, as first stated in the NEWS for June, 

 1895, p. 181, and subsequently expressly confirmed by Heymons, who 

 also gives two as the number in embryonic may-flies. Yet these may be 

 hypercriticisms, and the Text-Book is indispensable to scientific ento- 

 mologists, forming a welcome complement to Dr. Sharps' "Insects" in 

 the Cambridge Natural History. P. P. CALVERT. 



B e t h u n e , C. J. S. Sketch of James Fletcher, portrait, 75. H o w - 

 ard, L..O. On the entomological results of the exploration of the 

 British West India islands by the British Association for the Advancement 

 of Science, 75. Knuth, P. How do flowers attract insects? Botan- 

 isches Centralblatt 1898, No. 15, Cassel. M of fat , J. A. Protective 

 resemblances, 75. Obituary, Johnson Pettit, 4. Poulton, E. B. 

 Theories of mimicry as illustrated by African butterflies ; Protective 

 mimicry as evidence for the validity of the theory of natural selection, 

 Report of the British Association for the Advancement of Science, To- 

 ronto meeting of 1897, London, '98, and 21. R obertson,C. Flowers 

 and insects, xviii. Botanical Gazette, Chicago, April, '98. S t r i c k 1 a n d, 

 T. A. G. Further notes on the direct photographic enlargement of ento- 

 mological specimens, with description of a new apparatus, 8. 



Economic Entomology. Anon. The pernicious Aspidiotus, Re- 

 vue Scientifique, Paris, April 23, '98. Bar r o ws . The present status 

 of the San Jose scale in Michigan, 75. Bethune, C. J. S. Some 

 household insects, figs.; Notes on the season of 1897, figs., 75. Britton, 

 W. E. Insect notes of the season, Twenty-first Annual Report, Connec- 

 ticut Agric. Exper. Station for 1897. Part iv. New Haven, '98. -Chre- 

 tien, P. Natural history of Ennychiafasr.ialis Hb., Naturaliste, Paris, 

 April 15, '98. Dear ness, J. Annual address of the President: The 

 insects of the year, figs. , 75. D iscussionon temperature experiments 

 as affecting received ideas on the hibernation of injurious insects, 75.- 

 Fletcher, J. The San Jose scale, figs., 75. H a rri n gt on , W. H. 

 Notes on the insects of the year 1897, figs., 75. Hopkins, A. D- 

 The periodical Cicada in West Virginia, figs., map, 4 pis. Bulletin 50, 

 W. Va. Agric. Exper. Station, Morgantown, W. Va., Jan., '98. H ua r d , 

 V. A. The Hemiptera in the Canadian Parliament; The plague of cater- 

 pillars on the Saguenay, Naturaliste Canadien, Chicoutimi (Quebec), 

 April, '98. -H u n t e r , S. J. Notes on injurious insects, 72. Ke n y o n , 

 Abstract of recent publications, Experiment Station Record ix, 

 9, Washington, 1898. K i r k 1 a n d , A. H. The work against the gypsy 

 moth, 1897, 75. Kr tiger, F. The San Josg scale question, figs., 74. 

 -L i n t n e r , J. A. Twelfth Report on the injurious and other insects of 

 the State of New York for the year 1896, 9 text figs., 15 pis., Fiftieth Re- 

 port on the New York State Museum, Albany, '97. Rec'd May 7, '98.- 

 Lowe, V. H. Inspection of nurseries and treatment of infested nur- 

 sery stock, Bulletin 136, New York Agricultural Experiment Station, Ge- 



