44 NOTES AND EXHIBITS. 



from Illawarra. C. heata is apt to escape notice, being crepuscular 

 in its habits. H. mirifica was seen in numbers wherever the 

 brush vegetation occurs, but usually flying too high for capture. 

 He also showed examples of the bees concerned in the fertilisa- 

 tion of Candollea, and drawings illustrative of his paper. 



Mr. Fred. Turner exhibited (1) a flowering specimen of the 

 Californian Poppy {Romneya coulteri), grown near Goulburn by 

 Mr. Gibson — supposed to be the first time this plant has flowered 

 in New South Wales ; (2) a flowering specimen of the typical 

 form of the N. American " Stag's-horn Sumach " or " Vinegar 

 Tree " (Rhus typhina) grown at Wagga — also supposed to be the 

 first instance in which the plant has been known to flower in this 

 Colony ; and (3) a fruiting branch of Ailanthus glandulosa from 

 the County of Cumberland. 



Mr. Waite exhibited specimens of the various species of 

 Typhlops referred to in his paper. 



Mr. Froggatt showed a number of wasps with their nests in 

 illustration of his paper. 



Professor Wilson read the following Note entitled " Obser- 

 vations upon the Anatomy of tlie * dumb-bell-shaped Bone' in 

 Ornithorhynchus, with a new view of its Homology " : — 



"The 'dumb-bell-shaped bone' is not confined to the palatine 

 region, but both dorsally and posteriorly it is in intimate relation 

 to the nasal septum. From the dorsal part of its hinder extremity 

 it sends backwards a distinct vomerine spur, about 3 mm. in length, 

 which is bifurcated posteriorly and grooved along its dorsal border, 

 forming a splint for the ventral edge of the cartilaginous nasal 

 septum. The tips of this bifid spur are connected with those of 

 the anteriorly bifid end of the true vomer by means of a strong 

 ' vomerine ligament,' varying in length from about 2 mm. down- 

 wards. In coronal sections this ligament is seen to possess the 

 same sectional shape as the vomerine spurs, and to be structurally 

 and morphologically continuous with the bone at either end. 

 The vomerine spur lies quite dorsal to the palatine plate formed 



