424 



NOTES AND EXHIBITS. 



Dr. Chapman showed experiments upon the curdling of milk 

 by the action of pancreatic juice. This juice had been obtained 

 from a dog with a canula in the pancreatic duct by means of 

 intravenous injection of secretin. The enterokinase solution had 

 been prepared by maceration of the superficial mucosa of the 

 dog's duodenum in chloroform water. Some cubic centimetres of 

 juice were activated by 3 drops of enterokinase solution and 

 incubated for 6 hours. 



A series of test tubes, kept in a water-bath at 37° C, was. 

 arranged as follows : — (1) 5 c.c. milk + 3 drops of pancreatic juice. 

 (2) 5 c.c. milk + 2 drops of enterokinase solution. (3) 5 c.c. milk 

 + 3 drops of pancreatic juice + 2 drops of enterokinase solution. 



(4) 5 c.c. milk + 3 drops of " activated " pancreatic juice. 



(5) 5 c.c. milk + 3 drops of pancreatic juice. (6) 5 c.c. milk + 3 

 drops of pancreatic juice. These tubes had been in the water- 

 bath for 3 hours. None showed any clotting of the milk. To 

 tube (1), 2 drops of enterokinase were added. Clotting occurred 

 in 15 minutes. To tube (3), 5 c.c. of milk were added. Clotting 

 was observed in 2 minutes. To tube (4), 5 c.c. of milk were 

 added. Clotting was noted in 2 minutes. To tube (5), 3 drops 

 of activated juice were added. Clotting was remarked in 2 

 minutes. To tube (6), 5 c.c. of milk were added. No clotting- 

 occurred. 



Mr. G. A. Waterhouse exhibited specimens of all the known 

 Australian species of Ogyris [Lepidoptera : Lyccenidce]. Com- 

 menting on the habits of their larvae, he remarked that so far all 

 had been found to feed on various species of Loranthus, feeding 

 by night only and hiding during daylight under pieces of bark, 

 in holes in the trees, under stones on the ground, or even in ants'' 

 nests. Most of the species are attended by ants, which seem to 

 be very useful to them. About 7 o'clock one evening he watched 

 larvae of 0. ianthis making their way from a piece of Loranthus: 



