233 



GOSSIP NIGHT. 



Objects Exhibited and Notes. 



(^November St/i, 1910.) 



A. E. Hilton : Badhainia hyalina, x 20. Sporangia broken 

 and emptied of spores ; showing portions of capillitia in situ, 

 and their attachment to the walls. In its complete state, each 

 capillitium is a network of flat bands, with broad and thin 

 expansions at the angles ; it is connected at its extremities 

 with all parts of the sporangium wall. 



{Xovemher Sth, 1910.) 



A. C. Banfield : A young colony of Cristatella mitcedo. This 

 is the same colony that was shown at the meeting of the club 

 on October 25th last, and on which occasion it comprised four 

 zooids. Since the last meeting it has grown continually, and 

 is now possessed of ten zooids. This animal, it will be remembered, 

 was prematurely hatched from the statoblast on October 21st 



last. 



{Novemheo- StJi, 1910.) 



Charles D. Soar : Genital area of Hydrachna geographica, 

 showing egg in ovipositor. 



{December ISth, 1910.) 



Charles H. Caffyn : Hornblende Porphyrite, Cape Royds, 

 Ross Island, South Victoria Land, Antarctic. The Porphyrites 

 are intrusive rocks of intermediate chemical composition, and 

 stand between the plutonic syenites and diorites, on the one hand, 

 and the volcanic trachytes and andesites on the other. 



The section shows porphyritic crystals of brownish-green 

 hornblende mostly twinned and plagioclase felspar, in a ground 



