INDEX TO VOLUME XXI. Acari, pl. vii., 59, 123. Acta fusco-atra, Epping Forest, 316. Alepidosaurus ferox, 204. Alien plants in Essex, 327. Amethyst Glossy Starling presented, 129. Ant-lion larvae, 127. Annual meetings, 22, 129, 237. Apospory in Pteridium, 20. Araucaria imbricata, sections, 19 Argutus foliaceus infesting Rudd, 121. Arum italicum in Essex, 133. Ascogaster annularis, Manor Park, 245. Audley End House, fore-edge painting of, 18. Ashdon Meteorite, March 9, 1923, 232. Aveley, see Belhus. Avery, J., exhibits portraits, prints, water colour drawings, etc., 14, 16, 18, 22, 119, 124, 126, 129, 229, 232, 235 ; fore-edge paintings, 18, 19 ; map of Hatfield Forest, 18 ; entertains visit at Woodford, 190. Azolla, Chigwell Row, 21. Bacteria, 120, 154, 227. Badhamia panicea and populina, Walthamstow, 123, 133. Badhamia utricularis, 122, 227. Barking Church, fore-edge painting of, 19 ; visited, 236. Barns, S. J., conducts visit to Waltham Abbey, 77-83 ; exhibits caricatures by late Sir F. C. Gould, of Essex Worthies, 235 ; history of Gillwell Hall, 303. Baylis, H. A., Pwdre Ser, 271-275. Bedford Willow, section presented, 19. Bee, leaf-cutting, 27—31. Beech, section presented, 120. Beetles, 20, 42, 130, 207, 239, 242. Belhus, Aveley, stained windows 15th-17th century, water-colour drawings exhibited, 232. Bell, Alfred, obituary, pl. xix., 209-213. Berdinner, H.C., see Wooldridge, S. W., 112. Bestow, C., presents a "Dock Forgery," 238. Birds, 14—16, 19, 40, 41, 92, 121, 123, 129, 130, 132, 135, 195, 233, 241-243, 245, 318. Bittern presented, 123. "Blood" (bacteria in pond water), 120, 154, 227. Bocking, White Stork, 40 ; Goosander, 245. Bos primigenius, peat, Chingford. pl. i. ; Pleistocene, Ilford, pl. ii., 8 ; bones presented, 123. Briginshaw, J., photographs and water-colour sketches, Dedham and Epping Forest, exhibited, 122. British Association, Delegates' Con- ferences, 193, 316. British Museum (Bloomsbury), visit to prehistoric section, 123. British Museum (S.K.) visited, geology, 17 ; minerals, 231. Buckhurst Hill, development from 1838, 230. Bugs, 169, 227. Buxton, E. N., and 3 Essex Forests, portrait, pl. iii., 12. Buxton, G., E. N. Buxton and 3 Essex Forests, 12-14 ; conducts visit to Hatfield Forest, 87. Buzzard, Sewardstone, 132 ; in S.E. Essex, 193. Calman, W. T., Brit. Assoc. Con- ference, 1926, 326. Cambrian Rocks, Essex, 147. Campbell, Colney, Essex photo- graphs presented, 235. Canning Town Field Club, see Chip-Chap Club. Canvey Island visited, 89 ; Little Owl, 233. Carp, fungoid disease, 14. Cave-remains, Dordogne, 233. Cervus elaphus, Pleistocene, Ilford, pl. 1. Chalk Fishes, pl. xviii., 197. Cheese-press and "moate" pre- sented, 18. Chingford, Bos primigenius, pl. i. Chip-Chap Club, pls. viii.-x., 62. Christy, Miss R., presents birds of Doubleday collection, 121, 123, Christy, M., Arum italicum in Essex, 133. ——Essex Rivers, pl. xxiii., 275-302.