175 



Helix Luteo-Fasciata. Testa orbiculato-conoidea, superne minute 

 cancellata, inferne lsevi, tenebroso-castanea, luteo-uni vittata, mi- 

 nute perforata ; anfractibus senis, convexis; apertura parva, trans- 

 versa; labroacuto; columella lsevi. Habitat. Philippine Islands. 

 — W. W. Wood. 



Helix Ferruginea. Testa globoso-conoidea, ferruginea, trans- 

 versim striata, solida, ventricosa, interdum vittata, imperforata; 

 anfractibus quaternis, convexis; apertura magna, obliqua; labro 

 incrassato, reflexo ; columella lsevi. Habitat. Philippine Islands. — 

 W. W. Wood. 



Helix Cuvieriana. Testa orbiculato-convexa, carinata, tenui, lon- 

 gitudinaliter minute striata, infra periphseriam tenebrosa, superne 

 pallida ; minute perforata ; anfractibus quinis, subplanulatis, supra 

 suturis impressis ; apertura parva, transversa ; labro acuto ; colu- 

 mella lsevi. Habitat. Philippine Islands. — W. W. Wood. 



Helix Blandingiana. Testa subglobosa, cornea, longitudinaliter 

 striata, imperforata, oblique depressa.; anfractibus senis; aper 

 tura oblique rotundata; labro incrassato, reflexo; columella lsevi 

 Habitat. Banks of the River St. Paul, Liberia, Africa. — Dr 

 Blanding. 



Helix Humphreysiana. Testa orbiculato-conoidea, subtus con 

 vexa, minute rugosa albido-fulva, ad periphseriam fasciata, late 

 umbilicata, profunde perforata ; anfractibus senis, convexis; aper 

 tura submagna, obliqua ; labro acuto ; columella lsevi. Habitat 

 Specimens received of Mr. Humpheys were marked Pondicherry 

 Subsequently I received it from Mr. Balastier, of Singapore. 



Helix Balasteriana. Testa orbiculato-conoidea, sinistrorsa, sub- 

 carinata, subtenui, castanea, inferne inflata, prope periphseriam 

 tenebrosiori, minute rugoso-striata, perforata ; anfractibus senis 

 convexis; apertura parva ; labro incrassato, subreflexo; columella 

 lsevi. Habitat. Philippine Islands. — Mr. Balastier. 



Dr. Hare described a mode of procuring silicon by an easy 

 process. 



In the year 1833, Dr. Hare had published an engraving and de- 

 scription of an apparatus for evolving silicon or boron from their 

 gaseous fluorides. In operating with the apparatus alluded to, a 

 wire rendered incandescent by a calorimotor was made to ignite po- 

 tassium while surrounded by fluosilicic or fluoboric acid gas. Conse- 

 quently the potassium and fluorine entered in combination with pheno- 



