( 2 ) 



JOURNAL 



OF THE 



EOYAL MICEOSCOPICAL SOCIETY. 



Ser. 2.— Vol. II. Part 4. 



(AUGUST, 1882.) 



CONTENTS. 



Transactions of the Society — p ASB 



X. — On some Micro-organisms from Rainwater-Ice, and Hail. 



By R. L. Maddox, M.D., Hon. F.R.M.S., &c 449 



XL— The Relation of Aperture and Power in the Microscope 



(continued). By Professor Abbe, Hon. F.R.M.S 460 



XII. — Description of a Simple Plan of Imbedding Tissues, for 

 Microtome Cutting, in Semi-pulped Unglazed Printing 

 Paper. By B. Wills Richardson, F.R.C.S.I., Vice-President 



University of Dublin Biological Association .. 474 



XIII. — Note on the Rev. G. L. Mills' Paper on Diatoms in 



Peruvian Guano. By F. Kitton, Hon. F.R.M.S 476 



Summary of Current Researches relating to Zoology and 

 Botany (principally Invertebrata and Cryptogamia), Micro- 

 scopy, &c, including Original Communications from Fellows 



and others 478 



Zoology. 



Division of Embryonic Cells in the Vertebrata 478 



Genesis of the Egg in Triton 479 



Formation of Fibrine 479 



New Blood-corpuscle 480 



Life and Death in the Animal Organism 481 



Pelagic and Deep-Sea Fauna 483 



Anatomy and Classification of the Cephalopoda 485 



Ink-Sac of Cephalopoda 487 



Sense of Colour in Cephalopoda 489 



' Foot ' of certain Terrestrial Gastropoda 489 



Mucin of Helix pomatia 490 



Bhodope veranii 491 



Test-Cells in Ascidian Ova 491 



Embryology of the Bryozoa 492 



New Adriatic Bryozoa 494 



Sensations of Sight conveyed by the Facet-eye (Figs. 88 asd 89) 494 



Nervous System of the Slrepsiptera 499 



Insects which injure Books 500 



Formation of Galls .. 500 



Anatomy of Phalangida 501 



Scent- glands of the Scorpion-spiders ( Thelyphonus) 502 



Classification of the Brain of Crustacea 503 



Unpaired Eye of Crustacea 504 



Blood of the Crustacea . . 504 



Pyloric Ampullse of Podophthalmate Crustacea 505 



Eeterogeny of Daphnia .. .. .. .. .. 506 



