W. E. H. HoDsoN, F.Z.S. 



A Comparison of (A) the External Morphology of the Mouth- 

 parts and (B) the Internal Morphology and Degree of Develop- 

 ment of the Silk Press in typical Lepidopterous and Tenthre- 

 dinid (Hymenopterous) Larvse. 



Edward Phelps Allis, Jr., F.R.M.S., F.Z.S . 



The Postorbital Articulation of the Palato-quadrate with the 

 Neurocranium in the Ooelacanthidje. 



The Publication Committee desire to call the attention of 

 those who propose to ofi'er Papers to the Society, to the great 

 increase in the cost of paper and printing. This will render it 

 necessary for the present that papers should be condensed, and 

 be limited so far as possible to the description of new results. 



Communications intended for the Scientific Meetings should 

 be addressed to 



P. CHALMERS MITCHELL, 



Secretary. 

 Zoological Society of London, 



Regent's Park, London, N.W. 8. 

 October 'ilst, 1922. 



