" Russian " or " Manchurian Partridges." The species inhabits 

 Central and Eastern Asia, and may readily be distinguished from 

 the Common Partridge, P. perdix, by its paler colour, the 

 elongated feathers on the sides of the throat, and by the black 

 horseshoe patch on the breast. 



Miss Annie C. Jackson exhibited some living male specimens 

 of Stick Insects, and remarked that, although she had succeeded 

 in rearing several thousands in parthenogenetic generation, she 

 had obtained only seven males. 



Miss Kathleen Haddon read a paper " On the Methods of 

 Feeding and the Mouth-parts of the Larva of the Glow- Worm." 



External digestion is a phenomenon of fairly wide occurrence 

 among various groups of insects, and the mouth-parts are in some 

 cases specially adapted to this purpose. The larva of the Glow- 

 worm (Lampyris nociiluca) feeds on snails, of which it leaves no 

 residue but an empty shell ; it is unlikely that there is any 

 preliminary anaesthetising as asserted by Fabre. The mandibles 

 of the larva bite up the food and eacli mandible is pierced by 

 a fine tube, through which a dark-coloured fluid is exuded. The 

 bases of all the mouth-parts are covered with fine outwardly- 

 directed hairs, which are bathed in the juices of the snail whilst 

 the larva is feeding; the juice is sucked into the oesophagus, 

 which is extremely narrow, by the action of a pharyngeal pump 

 similar to that found in other sucking insects. 



Dr. J. F. Gemmill, M.A., F.Z.S., read a paper on the 

 " Ciliation of Asterids and on the Question of Ciliary Nutrition 

 in Certain Species." 



The arrangement of the ciliary currents on the various surfaces 

 of four widely different species of Starfishes is described in detail. 

 This arrangement is constant for all individuals in each of the 

 species, and, except as regards external surfaces, is practically the 

 same in all the species. Everywhere the arrangement is shown 

 to be explicable by physiological needs. Ciliation in the peri- 

 hsemal spaces is demonstrated. 



In the case of Porania pulvillus a mechanism for ciliary feeding 

 is shown to exist, and the results of experiment demonstrate that 

 this kind of feeding actually takes place. As regards Astropecten, 

 it is only shown, so far, that the arrangement of the actinal and 

 abactinal cilia makes ciliary feeding possible. In Solaster 

 papposus ciliary feeding probably takes place, but in an entirely 

 minor degree. The other Starfishes examined gave negative 

 results. The important bearing of the above results on questions 

 of phylogeny is briefly discussed. 



