PUBLICATIONS OP THE BAY SOCIETY. 7 



For the Thirty-second Year, 1875. 



52. A Monograph of the British Aphides. By GEORGE 

 BONVDLER BDCKTON. Vol. I. x + 194 + 78 pp., 42 plates 

 (A-C, i-xxxviii, iv bis). 8vo. 1876. 



For the Thirty-third Year, 1876. 



53. A Monograph of the Free and Semi-parasitic Copepoda 

 of the British Islands. By G. STEWARDSON BRADY. Vol. I. 

 iv + 148 + 72 pp., 36 plates (1-33, 10A, 24A, 24s). 8vo. 

 1878. 



For the Thirty-fourth Year, 1877. 



54. A Monograph of the British Aphides. By GEORGE 

 BOWDLER BDCKTON. Vol. II. iv + 176 + 100 pp., 50 plates 

 (xxxix-lxxxvi, libis, Ixixbis). 8vo. 1879. 



For the Thirty-fifth Year, 1878. 



55. A Monograph of the Free and Semi-parasitic Copepoda 

 of the British Islands. By G. STEWARDSON BRADY. Vol. II. 

 iv + 182 + 98 pp., 49 plates (34-82). 8vo. 1880. 



For the Thirty-sixth Year, 1879. 



56. A Monograph of the Free and Semi-parasitic Copepoda 

 of the British Islands. By G. STEWARDSON BRADY. Vol. III. 

 iv + 84 + 22 pp., 11 plates (83-93). 8vo. 1880. 



57. A Monograph of the British Spongiadae. By the late 

 J. S. BOWERBANK. Vol. IV (Supplementary). Edited, with 

 additions, by the Rev. A. M. NORMAN, xviii + 250 + 34 pp., 

 17 plates. 8vo. 1882. 



For the Thirty-seventh Year, 1880. 



58. A Monograph of the British Aphides. By GEORGE 

 BOWDLER BUCKTON. Vol. III. vi + 142 + 56 pp., 28 plates 

 (Ixxxvii-cxiv). 8vo. 1881. 



For the Thirty-eighth Year, 1881. 



59. A Monograph of the British Phytophagous Hymenop- 

 tera. By PETER CAMERON. Vol. I. viii + 340 + 42 pp., 21 

 plates. 8vo. 1882. 



For the Thirty-ninth Year, 1882. 



60. A Monograph of the British Aphides. By GEORGE 

 BOWDLER BDCKTON. Vol. IV. x + 228 + 62 pp., 27 plates 

 D-I, cxiv bis, cxv-cxxxiv). 8vo. 1883. 



