XIV CONTENTS. 



Arthropoda. 



PAGE 



WiELOWiETSKi, H. DE — Spermatogenesis of Arthropods Part 1 69 



Balbiani, E. G. — Bacteriological Studies in Arthropods „ 70 



GiLSON, G. — Spermatogenesis of Arthropods Part 2 222 



Bkuce, a. T. — Nervous System of Insects and Spiders and Remarks on Phrynus „ 223 



Plateau, F. — Function of Palps of Myriopods and Spiders , 223 



Lankester, E. Eat — Classification of the Arthropoda Part 3 378 



Schneider, A. — Digestive Tract of Arthropoda, and particularly of Insects .. „ 378 



Viallanes, H. — Comparative Morphology of the Brain in Insects and Crustacea „ 379 



Glaus, C. — Relations of Groups of Arthropoda Part 4 573 



Mark, E. L. — Simple Eyes in Arthropods Part 5 742 



Schneider, A. — Structure of Alimentary Canal Part 6 944 



a. Insecta, 



St. George, V. La Valette — Spermatogenesis of Beetles Parti 70 



Blochmann, F. — Oogenesis of Insects „ 70 



KoRSCHELT, 'Ei.— Origin and Significance of Cellular Elements of Ovary of Insects „ 71 



TiCHOMlROFF, A. — Chemical Composition of Ova „ 72 



Hallez, p. — Law of Orientation of the Embryo in Insects „ 72 



TiciiOJilROFF, A. — Artificial Parthenogenesis , 73 



Nassonow, N. — Thoracic Salivary Glands homologous with Nephridia .... „ 73 



NussBAUM, J. — Leydig's Cord „ 73 



FoREL, A. — Ants and Ultra- Violet Rays „ 73 



MiNOT, C. S. — Insect-skin „ 73 



Cholodkovsky, N. — Morphology of Insects' Wings „ 74 



PouLTON, E. B. — Colour of Pupm ,, 74 



Miall, L. C, & A. Denny — Structure and Life-history of the Cockroach .. „ 75 



Knatz, L. — Relationship and Relative Age of Noctuse and Geometrse , 75 



„ „ Forms of Caterpillars „ 75 



Grassi, B. — Primitive Insects „ 75 



„ „ Anatomy of Machilis „ 76 



Lemoine — Structure and Metamorphosis of the Aspidiotus of the Rose-laurel . . „ 76 



Beauregard, H. — Vesicating Insects Part 2 224 



Weise — Biology of Chrysomelidsa „ 224 



Breithaupt, p. F. — Anatomy and Physiology of Tongue of Bee „ 224 



Lampert, K. — Wall-bee and its Parasites „ 225 



Hase, E. — Scales of Lepidoptera „ 226 



PoULTON, E. B. — Larva of Smerinthus and its Food-plants „ 226 



Vogler — Tracheal Gills of Pupse of SimulidsR „ 227 



Adolph, E. — Wings of Diptera „ 227 



Kessler. H. F. — Life-history of Aphides , 227 



List, J. H. — Orthezia cataphracta „ 228 



Forel, A. — Vision of Insects Part 3 379 



Graber, V. — Function of Antennx „ 380 



Haase, E. — Holopneusty in Beetles „ 380 



Meinert, F. — Labium of the Coleopterous genus Stenus „ 380 



Ciiolodkoysky, N. — Prothoracic Appendages of Lepidoptera „ 381 



„ „ Morphology of Malpighian Tubes in Lepidoptera ., .. „ 381 

 PouLTON, E. B. — Cause and Extent of Colour-Delation between Lepidopterous 



Pupa} and surrounding surfaces „ 382 



„ „ Lepidopterous Larvx, Pupm, ^c „ 382 



Hennessey, H. — Geometrical Construction of the Cell of the Iloney-bee 



{Fig.QS) „ 383 



Kaschks, W. — Anatomy and Histology of Gulex ncmorosus „ 383 



MONIEZ, R. — Males of Lecanium liesperidum, and Parthenogenesis „ 383 



