LINNEAN SOCIETY OF LONDON. 35 



'Dictionary of Popular Names of Economic Plants,' Ilartig's 

 * Lelirbuch der Baumkranklieiten,' and the second volume of liis 

 Eeport on work done in the Forestry Institution of Munich. 



It will be needless to repeat that much work has been omitted 

 from the foregoing summary, which I have condensed as much as 

 possible. 



Heport on aoine of the more important Zoological Papers 

 piihlished ehewliere than at the Linnean Society. 



Protozoa. — Mr. Brady describes a new type of Foraminifera, 

 which he names JLeramosphccra JShirrayi (Ann. & Mag. Nat. Hist. 

 [5] X. 242-245) ; and L. Oliver has a paper on Bacterium ruhe- 

 scens, in which he contends that Lankester (Quart. Journ. Micr. 

 Sc. svi.) is mistaken in regarding these organisms as bacteria. 

 The splendid Manual of the Infusoria whicli has for long been 

 publislied in successive parts by one of our Fellows, Mr. tSaville 

 Kent, has this year been completed; it contains full descriptions 

 and beautifully executed drawings of all the known species. 

 Prof. Engelraanu's researches on Perception of Light and Colour 

 by Infusoria should also be alluded to (Pfliiger's Arch. xxix. 

 387-400). 



CcELENTEiiATA. — C. Chuu publishes a paper on the histology of 

 8i])honoj}hora (Zool. Anzeig. v. 400-40B) ; and G. von Koch con- 

 tributes some interesting results of investigations concerning 

 the morphology of the Coral-skeleton (Biol; Centralbl. ii. 1882, 

 583-593). Mr. J. W. Fewkes, who has already added consider- 

 ably to our knowledge of the New-world Acalephge, has published 

 another instalment of his results (Bull. Mus. Comj). Zool. Cam- 

 bridge, ix. 251-310) ; and an elaborate description of a new 

 species of Medusa from South Australia {Gi/anea Annaslcala), is 

 given by E. von Lendenfeld (Zeitschr. f . wiss. Zool. 1882, pp. 465- 

 553). Mr. W. Marshall, in his observations on Hydras (ibid. 

 664-702), agrees with Lankester that the green colouring-matter 

 of H. viridis is not due to symbiosis, but belongs to the organi- 

 zation of the polyp. W. Marshall, in conjunction with Prof. M. 

 Marshall, also gives an account of the Peunatulids collected by 

 the Oban Dredging Excursion of the Birmingham Nat. Hist. & 

 Micro. Soc. (this is in the form of a memoir). 



EcHiNODERMATA. — M. Perricr, in two distinct papers, deals 

 with tlie morphology of two interesting and remarkable starfish 

 (viz. Brisingia and Caulaster pedunculatus) ; and in a third pa2:)er 

 he describes a new deep-sea stalked crinoid {Democrinus Parfaiti). 

 In yet another paper, written in conjunction with M. Poirier, he 

 treats of the circulatory apparatus of echiuoderms generally. 

 M. Jourdaiu has published a somewhat laborious research on the 

 genital passages oi Aster ias; and in subsequent papers has added 

 considerably to our knowledge of the anatomy of Holothurians, 



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