66 PROCEEDINGS OF TUE 



not adhere to tlie skin durinfi; perspiration, and accordingly is 

 more comfortable for wear. (4) Drawin<if oi Dendrobium TlialcB- 

 nossia, Fitzg., from a plant collected by Mr. II. O. Forbes during 

 his sojourn in the Tenimber Islands. 



Mr. Thomas Christy showed a nut of Kola acuminata, which, 

 when planted, had thrown up a spike of flowers instead of f oliau;e, 

 and it had been in bloom without any sign of leaves for eight 

 mouths, the nut itself becoming of a bright green colour. 



INIr. R. A. Eolfe afterwards exhibited some examples of British 

 Oak-galls, ])roduced by Cyuipidean insects of the genus Neuro- 

 terus, and collected by him chiefly in Kew Gardens and at Mort- 

 lake. They were: — (I) Tiie Silk-button Gall formed by N. 

 numismafis, rare tliis season, though more usually abundant ; he 

 lias found this on the common English Oak, Quercus Hobur, and 

 on Q- lusifanica, Q. infectoria, and Q. Turneri. (2) The Globose 

 Gall, produced by N. out reus, got from Quercus Bobur and Q. infec- 

 toria, on the leaves of which trees it is confined to the midrib or 

 principal veins. (3) The smooth Spangle Gall, of a greenish- 

 white or rose-colour, flattish and destitute of hairs, produced by 

 Ncurotenis fumipennis, and got on Q. Bobur and Q. lusitanica. 



(4) The pale yellowish-green scarce Spangle Gall produced by 

 N. licviiisculus, and only got by Mr. Eolfe on the common Oak. 



(5) Tiie common Spangle Gall, produced by N. lenticularis, 

 found not only on Q. Bobur, but also on Q. Tarnetto, Q. Toza, 

 Q. lusitanica, Q. infectoria, and Q. clentata; the last a Japanese 

 Oak. There was also shown a remarkable blackish-purple com- 

 mon Gall, found on Quercus Bobur, var. Qranbyana. He stated 

 that, as a rule, the plan and details of the Gall depended on 

 the nature of the irritating fluid deposited by the insect ; but, 

 on the other hand, the difl'erent species of Oak seem to have an 

 influence in detern\iniug certain variations as to colour, and, it 

 may be, general growth of the Galls. 



The following papers were read : — 



1. "On some Points in the Development of the Five-bearded 

 Eockling {Motella musfela).'" By George Brook, F.L.S. 



2. " On a Collection of Plants made in the Timor-laut Islands." 

 By H. O. Forbes. (Communicated by AV. T. Thiseltou Dyer, 

 C.M.G., F.L.S.) 



8. " Notes on some New-Zealand Birds." By Thomas Potts, 

 F.L.S, 



4. "Eemarkson the Eeproduction of the Heteroecious Ure- 

 diues." By Charles B. Piowright. (Communicated by W. T. 

 Thiselton Dyer, C.M.G., F.L.S.) 



