VOLUMES ONE TO TWENTY-FIVE. 



99 



J. Curtis, vi. 131; the American wheat- 

 niidge,' 137 ; the British wheat-midge, 

 lo'J ; the barley-midge, 151. 



Insects, the same continued, including the 

 wheat-midge, thrips, wheat-louse, wheat- 

 bug, and the vibrio, vi. 493. 



, on the insects aifecting peas and 



beans, including weevils, maggots, 

 beetles, &c., by J. Curtis, vii. 404. 



aifecting clover (Curtis), sviii. — 



Weevils. — <Durculio lineata riddles the 

 leaves, 43 ; Apion Africans, the purple 

 clover-weevil, lays eggs in flowers and 

 the larvas eat seeds, 44 ; its ravages 

 reported by Mr. Trenchard, 45; Mr. 

 Markwick s researches, ib. ; A. assi- 

 nide i'smaller than A. Africanus, its 

 prevalence in clover-fields and pas- 

 tm-es, 47 ; A. flavipes, the Dutch 

 clover-weevil, kept in check by para- 

 sites, 48 ; described by Gueria, ib. ; 

 crops affected by it should be cut while 

 green, ib. ; the weevil destroyed by the 

 heat of stack fennentation, ib. ; the 

 ladybird in its larva state injmious, 59. 



affecting tares (Curtis), xviii. 33; 



A. pomona3, a black weevil, 54 ; litho 

 bremiella, foimd by the woodside, 55. 



affecting sainfoin (Cmiis), xviii. 57 ; 



A. hedysari, ih. ; chiysomela polygoni, 

 58. 



affecting lucem, &c. (Cmiis), xviii. 



58 ; colaspis atra, a black beetle, in 

 France, 59 ; coccinella imi^unctata, the 

 ladybii-d, in Germany, ib. ; snake mille- 

 pedes in Kent, 60. 



affecting pasture-land (Cmiis), xviii. 



G4 ; aphides, many varieties, 65 ; ceci- 

 domyiaj, kept in check by cimex cam- 

 pestris, a plant-bug, 67 ; the genera 

 Cldorops and Oscinis, ib. ; the field- 

 chafer or Maybug (anisoplia horticola) 

 described, 75 ; its larvae destructive to 

 pastme, ib. ; destroyed by diluted gas- 

 liquor or alkalies, ib. ; ants, varieties 

 of, 77 ; aboimd in the London clay, 'ib. ; 

 how to destroy, 79. 



pests, the habits of, should be studied 



and distinguished from those of insect 

 friends (Curtis), xviii. 80. 



■ suggested preventives to then* in- 

 crease and ravages (Curtis), xviii. 42. 



of the farm, their destruction by 



bii-ds (F. de Tschudi), xxiii. 231. 



International Agricultural Meeting at 

 Lille, report on (Sir A. K. Macdonald 

 and Prof. WOson), xxv. 209 ; functions 

 of the French Minister of Agricultm-e, 

 ib. ; competitive exhibitions, ib. ; intro- 

 duction of the foreign element, 210 ; 

 prizes of honour for faims, ib. ; classtfi- 



IKRIGATIOK. 



cation of machineiy, 211 ; awards to 

 English makers, ib. ; steam-ploughs, ib. ; 

 Kienzy's locomotive cultivator, 213 ; 

 vertical section and horizontal view of 

 its worlciug parts, 213-4 ; comparison of 

 its work with that of English rotary 

 machines, 215. 



International Exhibition at Hamburg, 

 report on (Prof. Wilson), xxv. 216; Baron 

 von Nathusius, its originator, 217 ; list 

 of countries represented by exhibitors, 

 218; prizes taken by Englislimen for 

 stock, 219; jurors' reports on horses, 

 220; Mr. R. Smith on the cattle and 

 sheep classes, 222 ; machinery and 

 uuijlement depaifment, 227 ; list of 

 awards to English makers, ib. ; ground- 

 plan of the show-yard, 230 ; distribu- 

 tion of space, 229 ; number of admis- 

 sions, 231 ; details of expenditm-e, 232 ; 

 death of Bai-on Ernst Merck, 234. 



Inilin, an occasional substitute for starch 

 in plants, xviii. 408. 



Inundations of the sea in Lincolnshire 

 (Clarke), xii. 312. 



Inverness Farmers' Society, report of 

 experiments on growth of turnips with 

 different manures, xxiii. 273. 



Iodine, its action on starch and cellulose 

 (Henfrey), xviii. 384; on older cell- 

 walls, 385 ; on bark, 386 ; on starch 

 and protoplasm, 399. 



Ireland, past and present (1843) state of 

 agricultiu-e in, by William Blacker, iv. 

 437 ; at the time of Aifluu- Yoimg, 

 438 ; the cultivation of small farms on 

 the estates of Lord Gosford and Colonel 

 Close in Ai-magh, 441 ; Irish landlords, 

 446 ; Lord Clancarty's eftbrts, 447 ; the 

 Flax Improvement Society, 451. 



, bogs of (E. Smith), xvii. 351. 



, Irish cows, tlie milk from, compared 



with that from the Ayrslm-e (F. Burke), 

 i. 442. 



, the imports of Irish butter, xiv. 77 ; 



defects of, ib. 



, acreage of (Hoskyns), xvi. 571 ; 



statistical map of, 602, 



Irish bog-bottom, ploughing of (P. Love), 

 xvii. 553. 



Eoyal Improvement Soc. (H. S. 



Thompson, M.P.), xxv. 1. 



Iron, oxides of, xvii. 470 ; siderite, ib. ; 

 vivianite, ib. ; pyrites, 471 ; magnetic 

 iron, ih. ; haematite, ib. ; bog-ore, 472 ; 

 deposit in chuius, ib. ; a powerful re- 

 agent, 473. 



slag, analysis of, xiii. 498. 



Irrigation in Cheshire (PaUn), v. 98. 



, mode of iDrocuring water for, in 



Affghanistan, v. 287. 



g 2 



