292 



Mr. C. F. Rousselet : Mounted specimen of Triarthra hrachiata, 

 a new species of Rotifer. (See ante, pj). 143-5.) 



Mr. R. T. Lewis : Curious sense-organ at the extremity of 

 the palpi of the female mosquito, Anoj^heles maculi2)ennis (sp. ?). 

 This is absent in the case of the common gnat (Culex pi2nens), 

 but a similar organ is found on the palpi of the Ticks in all 

 stages. It is retractile and capable of independent motion, and 

 is conjectured to be the means by which the exact position of 

 blood-vessels is ascertained. 



ISTOVEMBER 1st, 1901. 



Mr. T. N. Cox : Filamentous Alga, Sjnrogijra, showing spiral 

 band-like chromatophores. 



Mr. A. J. French : A fresh-water Alga, Draparnaldia glomerata, 

 mounted in weak formalin. 



Mr. A. E. Hilton : Sporangia of a Mycetozoan, Badhcimia 

 foliicola (Lister), before and after the dispersion of the spores. 

 In situ on -withered blade of grass. 



Mr. J. B. Scriven : Sensory nerve end-organs in the Blow- 

 Fly. A trachea passes through one of them, possibly forming 

 an organ of hearing. 



Mr. C. F. Rousselet ; Ploesoma hudsoni, a Rotifer from 

 America. 



Mr. H. Morland : Hemiaidus 2^olycystinorum. About the 

 commonest form found in the Springfield (Barbados) Poly- 

 cystinous deposit ; showing front and side views. 



November 15th, 1901. 



Mr. A. E. Hilton : Head of Fantail Fly, Dolichopus nobilitatics, 

 showing the brilliant eyes. Mounted in formalin. 



December 6th, 1901. 



Mr. T. G. Kingsford : Pith of Sunflower by reflected light, 

 showing the colours of thin plates. 



Mr. K. J. Marks : Vertical section of leaf of Ficus elastica, 

 showing cystolith in cell wall. Stained borax carmine. 



