Vol. XX\ iii I ENTOMOLOGICAL NEWS. 427 



407 — Journal of Genetics, Cambridge, England. 447 — Journal of 

 Agricultural Research, Washington. 480 — The Annals of Applied 

 Biology. 531 — Boletin, Direccion de Estudios Biologicos, Mexico. 

 532 — -Proceedings, National Academy of Sciences of the United 

 States of America, Washington. 540 — The Lepidopterist. Official 

 Bulletin, Boston Entomological Club. 543 — Genetics. Princeton, 

 N. J. 550 — Occasional Papers, Boston Society of Natural History. 



GENERAL SUBJECT, Brown, T. N.— Personal notice by R. C. 

 Miller, 181, x, 153-5. Burge, W. E.— The catalase content of lumi- 

 nous and non-luminous insects compared, 68, xlvi, 295. Chapman, 

 T. A. — An instance of a double pupal skin; Injury to pupa and mal- 

 formation of imago, 8, 1917, 196-7; 216. Doane, R. W.— Efifect of 

 smelter gases on insects, 68, xlvi, 295-6. Gates, F. C. — Synchronism 

 in the flashing of fire flies, 68, xlvi, 314. Harvey, E. N.— The chem- 

 istry of light-production in luminous organisms, 259, No. 251, 171- 

 234. Herrera, M. — Insectos homocromicos y mimeticos mexicanos, 

 531, ii, 83-91. Huie, L. H. — Some notes on the microscopical prep- 

 aration of insects, 206, 1917, 219-229. Lyle, G. T.— On the cocoon 

 colour of various insects, 9, 1917, 153-4. Silva, F. — Informe del jefe 

 de la secion de Aracnalojia e insectos daninos, 406, vii, 158-93. 

 Slosson, A. T. — A few memories. II, 6, xxv, 93-7. 



PHYSIOLOGY AND EMBRYOLOGY. Holt, C M.— Multiple 

 complexes in the alimentary tract of Culex pipiens, 322, xxix, 607-27. 

 Lankester, E. R. — The terminology of parthenogenesis, 10, cix, 

 504-5. Lecaillon, A. — Sur la signification des changements de cou- 

 leur qui se produisent normalement dans certains oeufs non fe- 

 condes de Bombyx mori . . .12, 1917, 192-4. Lockhead, W.— 

 Insects as material for studies in heredity, 75, 1916, 66-72. Mc- 

 Clung, C. E. — The multiple chromosomes of Hesperottetix and 

 Mermiria, 322, xxix, 519-608. May, H. G. — The appearance of re- 

 verse mutations in the bar-eyed race of Drosophila under experi- 

 mental control, 532, iii, 544-5. Plough, H. H, — The effect of tem- 

 perature on linkage in the second chromosome of Drosophila, 532, 

 iii, 553-5. Shull, A, F. — Sex determination in Anthothrips verbasci. 

 543, ii, 480-8. Sturtevant, A. H. — Genetic factors affecting the 

 strength of linkage in Drosophila, 532, iii, 555-58. Wenrich, D. H, 

 — Synapsis and chromosome organization in Chorthippus curtipennis 

 and Trimerotropis suffusa, 322, xxix, 471-518. 



MEDICAL. Howard, L, O. — The relation of insects to disease 

 in man and animals, 75, 1916, 57-62. 



ARACHNIDA, ETC. Aragas, H. de B.— Ixodidas. Commissao 

 de Linhas Telegraphicas Estrategicas de Matto-Grosso ao y\ma- 

 zonas (Pub. No. 36, 19 pp.). Eales, N. B.— The life history and 



