XIV • CONTENTS. 



Cholodkowsky, N. — Structure of Insect Testes 33 



Netter, Abraham — Bees as Reflex Machines 33 



Janet, Charles — Morphology of Insect's Head 147 



Folsom, J. W. — Mouth-parts of Insects 148 



Verson, Enrico — (Enocytes of Insects 148 



Redikorzew, W. — Structure of Ocelli 148 



Hesse, Richard — Simple Eyes of Insects 149 



Imhof, O. E. — Insect with Many Eyes 149 



Bordas, L. — Male Genitalia in Voleopt era 119 



Gahan, C. J. — Stridulating Organs in Beetles 150 



Handlirsch, A. — Stridulating Organ of Rhynchota 150 



Meijere, J. C. H. de — Prothoracic Stigmata in Dipt era 150 



Speiser, P. — Nycteribiid.se 151 



Meijere, J. C. H. de — Larva of Lonchoptera 151 



Stitz, H. — Male Genitalia of Microlepidoptera 151 



Gross, J. — Amitosis in Ovary of Hemiptera 151 



Surveyor, N. F. — Parasites on Cockroaches' Eggs 151 



Bengstsson, Simon — Cardiac Body in the Larva of Phalacrocera replicata .. .. 152 



Burner, C. — German Collembola 152 



Wasmann, E. — Guests of Dorylinse 152 



Paulcke, Wilhelm — Oogenesis in Queen Bee 272 



Forel, A. — Studies on Ants 273 



Shomann, H. — Symbiosis of Caterpillars and Ants 278 



Fischer, T. — Artificially-produced Colour-change in Butterflies 273 



Handliksch, Anton — Stridulating Organs in Rhynchota 274 



Absolon, Iv. — Collembola from Caves 274 



Enderlein, Gunther — New Kerguelen Insect 274 



Rengel, C. — Diet of Hydrophilus piceus 274 



Plateau, F. — Constancy of Insects in their Visits to Flowers 412 



Lesne, P. — Periodic Pcecilandry 412 



Imhof, O. E— Ocelli 413 



Kellogg, V. L. — Phagocytosis in Postembryonic Development of Diptera .. .. 413 



Villem, Victor — Cephalic Glands of Collembola 413 



Lecaillon, A. — Formation of Eggs in Apterygota 413 



Petrunkewitsch, A., & G. von Giaita — Sexual Dimorphism in the Sound-pro- 

 ducing Apparatus of Orthoptera .. 414 



Kirkaldy, G. W — Stridulating Organs of Corixi dm 414 



Champion, G. C, & T. A. Chapman — Viviparous Beetles 414 



Wheeler, W. M., & W. H. Long — Sexual Forms of Texan Ecitons 415 



Walton, L. B. — Metathoracic Pterygoda 415 



Imhof, O. E. — Antennas of Odonata 415 



Coutiere, H., & J. Martin — New Marine Hemiptera 415 



Dickel, Fekd., & August Weisman — Are Drone I ggs Fertilised ? 415 



Petrunkewitsch, A. — Maturation in the Eggs of Hive-Bees 524 



Escherich, K. — End oderm of Insects 524 



Guenther. K. — Nerve-endings in Butterflies' Wings 524 



Poljanec, L. — External Sexual Organs in Male Lepidoptera 525 



Christophers, S. R. — Structure of Adult Female Mosquito 525 



Holmgren, Nils — Spermatogenesis in Staph ylinus 525 



Schroder, L. — Development of Male Genitalia in Scolytidx 525 



Bordas, L. — Alimentary Canal of Dytisc idee .. 526 



Montgomery, T. H. — Chromosomes of Hemiptera Heteropter -a 52G 



Sondheim, Maria — Taming a Larval Dragon-Fly 526 



Martynow, Andreas — Peculiar Glands in Trichoptera Larvse 526 



Patterson, R. W., & others — Scale Insects 527 



Bordas, L. — Defensive or Odoriferous Glands of Cockroach 527 



Leger, L., & O. Duboscq — Intestinal Secretion in Crickets 52S 



Carl, Joh. — Collembola of Switzerland 528 



Noack, W. — Development of Muscidas 641 



Absolon, Karl — Sense-organs in Collembola 642 



Flammarion, C. — Determination of Sex in Silhnritli 642 



Howard, L, O. — Mosquitoes 642 



