998 



Cycadere, Reproductive Organs of, 908. 

 Cymothoida, some new, 874. 

 Cyplionautes, 8G3. 



D. 



Dactylocalyx puniiceus (Stutchburj), 



Observations on, &c., 1:!2. 

 — - Stutchburyi, New "Variety, De- 

 scription of, &c., 122. 

 Danish Academy, Natural Science 



Prizes, 699. 

 Davis, H., Notes on the Pygidia and 



Cerci of In.-ects, 252. 

 J., New Species of Cothurnia, 



653. 

 Deby, J., Is not the Eotiferous Genus 



Pedaiion of Hudson synonymous 



with Hexarthra of Schmarda? 384. 

 , Note on his Paper (on Pedaiion) 



by C. T. Hudson, 386. 

 Deeapodous Crustacea, Functions of 



the Ganglionic Chidn in, 419. 



. , Male Organs of, 420. 



, Structure of tlie Central 



Nervous Systt-m of, 419, 872. 

 DiCfptive Appearances produced by 



Reagents, 191. 

 Deep Sea, (Gigantic Isopod of, 152. 

 Deep-sea Siphonophora, 278, 432. 

 Deep-water Fauna of the Lake of 



Geneva, 700. 

 Definition, High -power, Microscopical 



Researclies in, 784. 

 Degeneration of the Visual Organs in 



Arachnida, 146. 

 Delicate and Perishable Animal 



Tissues, Method of Preserving, 461. 

 Depazeacete, Structure of, 601. 

 Desmidieaj, Subalpine, 607. 

 Desmids, Movenients of, Influence of 



Light on, 937. 

 Development, Experiments on, 844. 

 Developmental History of the Spiders, 



294. 

 Dew and Rain, Absorption of, by the 



green paits of Plant.-;, 913. 

 Diagrams exliibiting the Path of a Ray 



through ToUes' ^ Immersion Ob- 

 jective, Note on, 269. 

 Diatomacere, Life-history of, 181. 

 , New Species and Varieties from 



the Caspian Sea, 677. 



, Thallus of, 38, 608. 



Diatoms, Adulteration of Currant Jelly 



■with, 938. 

 and Oscillatoriese, Movements of, 



182. 

 as Test Objects, Use and Abuse 



of, 183. 



, &c., Dry Preparations of, 83. 



, New, 762, 937. 



Diatoms, Preparation of, in situ : means 

 of avoiding Air-bubbles, 616. 



, Sexual Process in, 93. 



, Terrestrial, 762. 



Diftraotion Experiments with Pleuro- 

 sigma angulatum, 141. 



Digestion and Liver of the Cephalo- 

 podous MolluscH, 405. 



of Albuminoids by Invertebrata, 



274. 



Digestive Ferments of the Invertebrata, 



548. 

 Organs of the Fresh-water Tur- 



bellarians, 287. 

 of the Myriapoda, Anatomy 



and Pliysiology of, 710. 

 "Digger" Mollusc and its Parasites, 



303. 

 Dimorphism, Seasonal, in Lepidoptera, 



29?. 

 Dioon edule, Male Inflorescence of, 



Disengagement of Heat which 



accompanie.s the Expansion of, 752. 

 Diplera, Nerves of Proboscis of, 865. 

 DLsoomycetes, new Genus, Berggrenia, 



923. 

 Discosporangiura, a new Genus of 



Phseosporese, 186. 

 Disease, Beech, PhytophtLora Fagi, 



923. 

 , Fungus, in Lettuces (Peronospora 



gangliiformis), 316. 

 , Relation of Microphytes in the 



Blootl to, 924. 

 Diseases, Fungoid, of Plants, 167.- 

 , New, of Hot-house Rubiacese, 



572. 

 Dissected Model of an Insect's Brain, 



New Method of preparing from 



Microscopic Sections, 84. 

 Dissecting Microscope, Schobl's, 956. 



Microscopes, Apparatus for 



Focussing, 954. 



Division, Formation, and Fructification 



of tlie Animal Ovum, 274. 

 of Cartilage Cells, 273, 546. 



of the Polkn-grain in Angio- 



sperms, 746. 



Dog, Eur of, Pentastoma tsenioides in, 



712. 

 Doridse of the Northern Seas, 859. 

 Drawing with the Camera Lucida, 



Sup[)ort for the Head in, 187. 

 Dry Preparations of Diatoms, &c., 83. 

 Duck, Harderian Gland of, 848. 

 Dytiscus, Sucking Plate of, 300. 



E. 



Ear of a Dog, Pentastoma tsenioides in, 



712. 

 Early Development of Equisetaceaj, 157« 



