LINNEAN SOCIETr OF LONDON. 5 I 



the specimens, in which the tail was found to project into the 

 neck of the burrow above the lid of the capsule, having been, as 

 it were, left outside or incompletely withdrawn during encap- 

 sulation (see figure). As the tail was not exposed but closely 

 invested on all sides by a layer of dense capsulogenous material, 

 continuous with the lid, the specimen is of especial interest, as 

 stowing that the whole surface of the body may be concerned in 

 the secretion of the capsule. 



Mr. J. E. Harting exhibited specimens of Caccahis saxatilis 

 and C. chuJcor, with a map, to illustrate the geographical range 

 of these two Partridges in S. -Eastern Europe. The Indian 

 chiihor had been found to extend through Asia Minor to tbe 

 Greek islands of Lemnos and Imbros, while of the Western 

 saxatilis he had procured specimens from Patras, Mt. Hortiach, 

 Avret-Hissar, and Salonika. This carried the extension of the 

 latter species much farther eastward than had been indicated by 

 Mr. Dresser, who (in his ' Birds of Europe ') bad restricted it to 

 the western side of the Adriatic, and had made no mention of its 

 occurrence in Greece, while tbe occurrence of C. chukor in the 

 Greek Islands had not been previously noted. 



The Eev. G. Henslow exhibited specimens to illustrate the 

 Germination of jRanuncidusjluitaits (Maltese var.). He remarked 

 that the peculiarity in the germination of this aquatic plant 

 resided in the frequent (50 per cent.) arrest of the primary root, 

 with tbe production of adventitious roots just above the disor- 

 ganized end of the radicle. In his paper on "A Theoretical 

 Origin of Endogens from Exogens," Mr. Henslow had pointed 

 out that the universal arrest of the axial root in Endogens was 

 foreshadowed in that of members of the Xymphseacese, (Enanthe 

 JPheUaiidrium and Ceratophyllum. The present examples, there- 

 fore, aiforded an additioual corroboration of the theory advanced 

 in that paper. 



The following papers were read : — 



1. "On the Yalue of Specific Characters." By Dr. A. E. 

 Wallace, E.E.S., F.L.S. 



2. " On the Intermuscular Bones of Fishes." By Prof. T. W". 

 Bridge, D.Sc. (Communicated by Prof. George Bond Howes.) 



3. " On the Relation of the Growth of Foliage-Leaves and tbe 

 Chlorophyll Function." By Prof D. T. M^icDougal. (Com- 

 municated by Mr. Percy Groom, F.L.S.) 



4. " On the Formation of the Epiphragm of the Common Snail 

 {Selix asjjersa)." By Prof. G. J. Allman, F.E.S., F.L.S. 



5. " On some New Species of Forjiculidce in the Collection of 

 the British Museum." By W. F. Kirby, F.L.S. 



