CONTENTS. XI 



PAGB 



Butterflies with Dissimilar Sexes No. 7 867 



Adoption of an Ant-quecn „ 868 



Mode of depositing Ant-eggs „ 868 



)3. M3rriapod.a. 



Poismi Glands of the Centijyedes No. 1 57 



Organization of Myriapoda No. 3 295 



Folyxeniis lagurus, Be Geer „ 296 



Tracheal System of Glomeris No. 4 414 



Observations on Peripatus No. 5 559 



Anatomy and Physiology of the Digestive Organs of the 



Myriapoda No. 6 710 



New Scolopendra „ 712 



New Pawopod No. 7 869 



y. Arachnida. 



British Acari — Orihatidue No. 1 76 



Degeneration of the Visv/xl Organs in Arachnida .. .. No. 2 146 



Natural Classification of the Spiders No. 3 293 



Besearches into the Developmental History of the Spiders , . „ 294 



Neio Genus of the Chelifcridce „ 295 



New Acarina „ 295 



Structure of the Hydrachnida No. 4 415 



Acarina found parasitic in the Cellular Tissues and Air- 

 sacs of Birds ,, 415 



On some Genera of Acarina „ 417 



Parasitic Chyletidw „ 418 



Basilica Spider and her Snare. (1 fig.) No. 5 559 



Aeronautic Flight of S/nders „ 561 



New and other Pycnogonida „ 562 



Pentastoma tanioides in the Ear of a Dog No. 6 712 



Genera of Acari .. .. .. .. „ 712 



New Division of the Tarantulida No. 7 869 



Differences between the Young and the Adtdt Forms of the 



Gamasidas „ 870 



Pairing of Spiders „ 870 



Observations on the Pycnogonida „ 870 



5. Crustacea. 



Parasitic Crustacea No. 1 61 



Formation of Ovisacs in Copepoda „ 85 



Phosphorescence of the Flesh of Jjobsters No. 2 151 



Species of Marine Crustacea in Lake Erie „ 152 



Gigantic Isopod of the Deep Sea „ 152 



Limicoloris Cladocera ,, 153 



Kidney of the Fresh-v-ater Crayfish No. 3 291 



Action of the Heart of the Crayfish ,, 292 



Intimate Structure of the Central Nervous System of Deca- 



podous Crustacea No. 4 419 



Functions of the Ganglionic Chain in the Decapodous Crus- 

 tacea „ 419 



