244 BIBLIOGRAPHY. 



during tlie next few weeks, and intimated that he would read a paper 

 in May " On the Fern Spore and Seed Compared." 



The meeting then became a conversazione, at which 



Mr. Smith exhibited EpJiemerum serratum, with prothallus and 

 germinating spores of Pteris serrulata and Funaria twelve and twenty- 

 one days old. 



Mr. Ardley exhibited spores of ferns and elaters of Equisetum. 



Mr. Davies exhibited specimens of the rare lichen — Collema derma- 

 tinum, which appears to be a form of G. fervum ; a fertile specimen of 

 the little-understood Collema ceranoides, from West' Sussex ; Lepto- 

 gium Schraderi, from Woolstonbury Hill ; and a fertile Brjjum Donia- 

 num, from near Chichester. This latter plant is seldom found fertile 

 in this country. It is common in Italy, and appears to wander along 

 the shores of the Atlantic, always being found near the coast. 



Mr. Wonfor exhibited spores of leaf fungi, ferns and seaweed, 

 spores and elaters of Equisetum and Marchantia, prothallus of fern, 

 and the potato fungus. 



It was resolved that the subject for the April Microscopical Meet- 

 ing should be " Vegetable Cells." 



BIBLIOGEAPHY. 



Sitzungs-Berichte der naturwissenschaftlichen Gesellschaft Isis in 

 Dresden, Herausgegeben von Carl Bley. Jahrgang, 1870. No. 4 — 6. 

 Dresden. Schopif. 



Die chcmisch mikrokopische Untersuchung d. Harns. auf Seine 

 wichtigsten Krankhaften Veranderungen. Von Dr. 0. Puhlmann. 

 Berlin. Hirschwald. 



Abhandhangen der Konigl. Akademie der Wissenschaften zu Berlin. 

 Aus. d. J. 1869. Berlin. Dumler. 



Untersuchungen iiber Blasenbildung und Epithelregeneration 

 an der Schwimmhaut d. Frosches. Von Prof. Biesiadecki. Wien. 

 Gerolds Sohn. 



Beitrage zur Kenntniss der Gattung Najas. L. Botanissche In- 

 augural-Dissertation. Von P. Magnus. Berlin. Calvary. 



Bryozoi fossili italiaui. 4 contribuzioni. Dr. A. Manzoni. 

 Wien. Gerolds Sohn. 



The Beginning, its When and its How. By Mungo Ponton, 

 F.E.S.E. London. Longmans. 



The Mystery of Life. An essay in reply to Dr. Gull's attack on 

 the theory of vitality in his Harveian Oration for 1870. By Lionel 

 S. Beale, M.B., F.R.S. London. Churchill. 



