INDEX. 



803 



8, 57, 130, 204, 317, 414, 422, 423, 

 426, 430, 432, 447, 500, 524, 527, 

 540, 570, 571, 575, 591 ; against 

 Cher me s spp. in nurseries, 376, 

 431, 535 ; and nicotine, 487, 546 ; 

 watering with, against under- 

 ground insects, 402, 422, 553 ; 

 addition of, to mixture of nico- 

 tine and lime-sulphur inadvisable, 

 570. 



Society Islands, Rhabdocnemis 

 ohscura the chief banana pest in, 

 494. 



Soda, addition of, to nicotine, 475 ; 

 and resin, against Aphids and 

 Nysiiis vinitor, 260 ; and sulphur, 

 spraying tests with, 511, 512 ; 

 and white arsenic, for protecting 

 timber against termites, 355 ; 

 caustic effect of, in sprays, 180 ; 

 (see Caustic Soda). 



Soda Ash, caustic soda a better 

 water-softener than, 381. 



Sodium Arsenate, addition of, to 

 oil emulsions against Aegeria 

 pyri, 202 ; in formula for bait 

 for ants, 251 ; formulae for, in 

 sprays, 25, 368, 427, 586 ; effect 

 of dry form of, on Phorbia bras- 

 sicae, 127 ; and lime, 368. 



Sodium Arsenite, 244 ; in baits for 

 ants, 482, 483 ; formula for 

 spraying with, against Coleoptera, 

 250 ; and molasses, against Dae its 

 oleae, 110; in baits for Diptera, 

 110, 421, 525, 586; in baits for 

 Oryctes, 48 ; experiments with, 

 against termites, 355 ; in baits for 

 Zonocerus elegans, 464 ; dangers 

 of using, 187 ; not suitable as 

 an orchard spray, 410. 



Sodium Benzoate, in bait for ants, 

 251. 



Sodium Borate, in bait for Dacus 

 oleae, 421. 



Sodium Carbonate, formulae for, 

 in sprays for Aphids and Coccids, 

 447, 503, 540 ; in spraj^ for locusts, 

 26 ; in preparation of tobacco 

 decoction against thrips, 423, 



Sodium Chloride (Salt), in formula 

 for painting fruit-trees against 

 Aegeria opalescens, 163 ; in baits 

 for grasshoppers, 249, 260, 336, 

 372, 444, 581 ; in sprays for 

 orchard pests, 84, 318 ; effect of, 

 on Phorbia brassicae, 127 ; and 

 lime-sulphur, 84 ; sodium fluoride 

 adulterated with, 530. 



Sodium Cyanide, for destrojnng 

 ants' nests, 143, 335, 546 ; for 

 sterilising soil, 527 ; suggested 



experiments with, against ter- 

 mites, 356 ; percentage of hydro- 

 cyanic acid derived from, 584 ; 

 in preparation of hydrocyanic 

 acid gas, Qo, 376. 



Sodium Fluoride, in baits for cock- 

 roaches, 176, 529 ; adulteration 

 of, 529. 



Sodium Hydroxide, casein dissolved 

 in, as a spreader for arsenicals, 

 285. 



Sodium Hypochlorite (Eau de 

 Javelle), spraying with, against 

 Pieris brassicae, 544. 



Sodium Nitrate, for protecting flax 

 from Longitarsiis parvuliis, 447 ; 

 as a soil-dressing against wire- 

 worms, 519 ; (see Saltpetre). 



Sodium Sulphide, proposed regula- 

 tions for sale of, in South Africa, 

 465. 



Sodium Sulpho-carbonate, effect of 

 addition of soap and fish-oil 

 soap to, on Aphid eggs, 526. 



Sodium-sulphur, experiments with, 

 against Apliid eggs, 526. 



Soft Brown Scale (see Coccus 

 liesperidiim). 



Soft Green Scale (see Coccus viridis). 



Soft Rot of Celery, believed to be 

 caused by Lvgiis pratensis in 

 Ontario, 132. ' 



Soft Scale (see Coccus hesperidum). 



Soil, influence of character of, on 

 insect pests, 37, 173, 192, 205, 

 216, 588; influence of character 

 of, on generation and effects of 

 hydrocyanic acid gas, 65, 311; 

 sterilisation of, 515. 



Soil Bacteria, injurious effect of 

 arsenic on, 354. 



Soja (see Glycine). 



sojae, Agromyza. 



solanella, Lita (see Phthorimaea 

 operculella) . 



solani, Pseudococcus. 



solanifolii, Macrosiphuni. 



Solanwn melongena (see Egg-plant) . 



Solanum nigrum (Nightshade), 

 Phthorimaea operculella on, in 

 Western Australia, 260. 



Solanum sodomaeum (Sodoni Apple), 

 Phthorimaea operculella on, in 

 Western Australia, 260. 



Solanum tuberosu>n (see Potato). 



Solenopsis geminata, in Panama 

 Canal Zone, 304. 



Solenopsis geminata var. xyloni (Fire 

 Ant), on maize in Arizona, 406. 



Solenopsis molesta, measures against, 

 in houses in South Dakota, 

 482. 



