June 30, 1919. Price 18.9. 



THE JOURNAL A 



/eg 



OF 



THE LTNNEAN SOCIETY. 



YoL. XXXIII. ZOOLOGY. No. 224. 



CONTENTS. 



Page 

 I. Experiments and Observations bearing on the Explanation o£ 

 Form and Colouring, 1908-1913. By C. F. M. Swynnerton, 

 F.L.S 203 



II. Notes on the Bionomics, Embryology, and Anatomy of Certain 

 Hymenoptera Parasitica, especially of Microgaster connexus 

 (Nees). By J. Bronte Gatenby, B.A., B.Sc, Senior Demy, 

 Magdalen College, Oxford ; Senior Assistant in Zoology, 

 University College^ London. (Communicated by E. S. 

 GooDEiCH, F.R.S., Sec.L.S.) (Plates 24-26, and 15 Text- 

 figures.) 387 



Index, Title-page, Contents, etc. 



LONDON: 



SOLD AT THE SOCIETY'S APARTMENTS, BURLINGTON HOUSE, 



PICCADILLY, W. 1, 



AND BY 



LONGMANS, GREEN, AND CO., 



AND 



WILLIAMS AND NORGATE. 

 1919. 



