224 PROCEEDINGS OP SOCIETIES. [ jouml aITHs™.' 



flask-sliaped species, still unnamed, as far as lie is aware. In both 

 cases the sm-faces of the tests, which are evidently of a chitinous and 

 not siliceous nature, have a beautifully-regular, hexagonal reticulation. 



It is a curious fact that, though the bodies of such aniuials appear 

 to be nothing but sarcode, and though the specimens shown had been 

 subjected to the intense heat of the flame of a spirit-lamp, yet, in each 

 case, the scarcely-shi-unken body of the animal could be seen suspended 

 within the diaphanous test, exactly as in its living retracted state, but 

 surrounded by a ring of agglomerated thorn-shaped particles, appa- 

 rently of a denser natm-e. 



Captain Lang at fii-st thought these were Diatoms on which the 

 creatures had fed, but examination proved that they were not ; and as 

 this outer ring is present in each specimen, and of similar form, it is 

 not likely to be expressed food. 



Collins' dissecting compound microscope, with erecting prism, and 

 Moller's test-slide, were brought before the notice of the meeting ; and 

 specimens of Podocystis spathulata, Asterionella, parasite of owl, elaters 

 and spores of PelUa epiphjlla, were exhibited by various members. 



BIBLIOGEAPHY. 



Eegeneration des Vers a soie et notablement dcs Vers a soie de Pays. 

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Quain's Lelirbuch der Anatomic. Bearbeitet von C. E. Hoffmann. 

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Programme du Cours d'Histologie professe a la Faculte de Medecine 

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Ueber die Entstehung der Arten durch natiirlichc Zuchtwahl, oder 

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Untersuchungen aus dem Institute fiir Physiologie und Histologic 

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