( 2 ) 



JOUENAL 



Oy THB 



EOYAL MICROSCOPICAL SOCIETY. 



Ser. 2.— Vol. III. Part 1. 



(FEBRUARy, 1883.) 



CONTENTS. 



Transactions of the Sooiett — p^os 



I. — Obseevations on the Anatomy op the OsEBATrD^. By A. D. 



Michael, F.L.S., F.E.M.S. (Plates I. and 11.) .. .. 1 

 II. — On A Minute Form of Parasitical Protophyte. By G. F. 



Dowdeswell, M.A., F.E.M.S 26 



III. — On the use of Incandescence Lamps as Accessories tOvThe 



Microscope. By C. H. Steam, F.K.M.S. (Figs. 1-6) .. 29 



Summary of Current Eesearohes relating to Zoology and 

 Botany (principally Invertebrata and Cryptogamia), Micro- 

 scopy, &c., including Original Communications from Fellows 



AND others .. .. 34 



Zoology. 



Sudden DestrvMion of Marine Animals 34 



Apparent Bird-tracks by the Sea-shore 34 



Anastomoses of the Striated Musoular Fibves of Invertebrates 35 



Digestion in Cephalopoda 36; 



Development of Bithynia tentacidata 36 



Organization of Adriatic Chitons 38 



Generative Organs of Oysters 41 



Early Development of Salpidse 41 



Compound Asddians of the Bay of Naples . . ._^ 42 



New Division of Cheilostomatous Polyzoa 43 



New Type of Pdyzoa — Cephalodiscus .. .. 44 



Vitality of Fresh-water Polyzoa 45 



Observations on Living Polyzoa 45 



Polar CeUs of Insects 45 



Embryonic Development of the Bombyoini 46, 



Asymmetry of the Nervovs System in Larose , 46 



Vitality of Insects in Gases 47 



Mouth-organs of Sucking Insects . . , . 48 



Scent-Organ of Papilio 49; 



Anatomy of Aphides 49 



Jjampyridss 51 



Exigence of a Blastopore and Origin of the Mesoblast in Peripatus .. .. 52 



Formation of Pruesic Acid in a Myriopod 53 



Embryology of the Chilopoda 54 



Poiso7i- Apparatus of Scorpions . . 55 



Snares of Orb-weaving Spiders 55 



Swiss Hydrachnidm 56 



Homologies of the Crustacean Limb 56 



Characters of Nebalia 57 



Nervous System of Paleemonetes varicms 57 



New Genus and Species of Lyncodaphnidie 58 



Tubes of SaheUidie , ., ., .. .. ,. ., .. .. .. 58 



