30 LIST OF VOLUMES ISSUED BY THE BAY SOCIETY. 



FOR THE THIRTY-NINTH YEAR, 1832. 



A Monograph of the British Aphides. By G. B. Buckton, 

 F.R.S. Vol. IV. Twenty-seven Plates. 8vo. (Com- 

 pleting the Work.) 



FOR THE FORTIETH YEAR, 1883. 



British Oribatidae. By A. D. Michael, F.L.S. Vol. I 

 Thirty-one Plates. 8vo. 



FOR THE FORTY-FIRST YEAR, 1884. 



A Monograph of the British Phytophagous Hymenoptera. By 

 P. Cameron. Vol. II. Twenty-seven Plates. 8vo. 



PRINTED BY J. E. ADLARD, BARTHOLOMEW CLOSE. 



