SAL 



529 



SAL 



If the chalk is to be burnt into lime 

 beforq it is applied, care should be 

 taken that it does not contain, like some 

 ofthe Yorkshire chalks, a large propor- 

 tion of carbonate of magnesia. Mag- 

 nesia remains long in a caustic state, 

 and has been found injurious to the 

 plants to which it has been applied 



is further sustained by the experiments 

 of Dr. Jackson, the American chemist. 

 He found phosphates in peas and beans 

 of various kinds, in pumpkin seeds, 

 chestnuts, potatoes, raspberries, and 

 turnips. See Bones. 



Super-Phosphate of Lime. — Chrysan- 

 themums were much increased in vi- 



Ckloride of Lime gradually gives out gour when watered with a solution of 

 a portion of its chlorine, and is con- this salt in the Chiswick Garden, at the 

 verted into muriate of lime, a very de- 

 liquescing salt, which can hardly exist 

 in any soil, however light, without 

 keeping it moist ; and its nauseous 

 odour may be found to keep off the 

 attacks ofthe fly, and other vermin. A 

 solution containing one ounce in five 

 gallons of water, is said to destroy the 

 aphis and the caterpillar, if poured over 

 the trees thev infest. 



end of July. It is thought, if the appli- 

 cation had been made earlier, the be- 

 nefit would have been still more marked. 

 Professor Lindley says this salt seems 

 to have a beneficial effect on most 

 plants, and that it may be applied in 

 different proportions without the least 

 risk of injuring the plants. — Card. 

 Chron. 



Heaths appear to like it. The best 



Gas Lime is a hydro-sulphuret of lime, practical mode of obtaining super-phos- 



^l^_^^^ ^j. jjjj^g j.^j. manure, is to pour 

 one pound of sulphuric acid, mixed 

 with one pound of water, upon each 

 two pounds of bone dust, allowing the 

 mixture a week to complete the decom- 

 position. Sulphate of lime and super- 

 phosphate of lime are the result. The 

 Duke of Richmond and others have 



with a little ammonia. It is an excel 

 lent manure, especially to cabbages, 

 turnips, cauliflowers, and brocoli, dug 

 in at the time of planting or sowing. 

 If sown over the surface at the time of 

 inserting the crop, at the rate of twenty 

 bushels per acre, it will etfectually 

 drive away the turnip-fly, slug, &c 



Gypsum, or Plaster of Paris, is sul- ; tried this with very great success upon 



phate of lime, composed of 



Sulphuric acid ... 43 



Lime 33 



Water .... 22 



It has been found very useful as a 



top dressing to lawns, and dug in for 



turnips and potatoes. Three hundred 



weight per acre is abundance 



turnips. It being in a liquid form, it 

 must be mixed with earth to facilitate 

 its application, or else be applied 

 through the rose of a watering-pot. 



SALT TREE. Halimodendron. 



SALVIA. See Clary and Sage. 

 One hundred and five species. The 



Nitrates of Potash (Saltpetre), and of ^ shrubby, stove, and green-house kinds, 



increase by cuttings ; the herbaceous, 

 by division ; the annuals and biennials, 

 -seeds. Common soil suits them all. 

 S. patens makes a splendid bed. The 



Soda (Cubic Petre), have been found 

 beneficial to carrots, cabbages, and 

 lawns. One pound to a square rod of 

 ground is a sufficient quantity. Both 



these nitrates have been found bene- Hower-spikes should be cut off for a 



fii:ial to potatoes in Scotland. Mr. 

 Murray says that, from 1810 down to 

 the present time, he has been in the 

 habit of watering pinks and carnations 

 with solutions of these two nitrates, 

 and the benefit has been uniform and 

 eminent in promoting their luxuriance. 

 — Gard. Gaz. 



Tliey have also been given in solu- 



time, and the young shoots regularly 

 pegged down till they nearly cover the 

 bed, when the flowers will be produced 

 so numerously as to form one mass of 

 intense blue. — Gard. Chron. 



Mr. Vaux, of Ryde, in the Ise of 

 Wight, says, that there " it ripens seeds 

 perfectly in the open air. Sow it in 

 pots in autumn ; put the pots in a cool 



tion with great benefit to lettuces, j frame protected from frost, where they 

 celery, fuchsias, and dahlias. One may remain during the winter. In the 

 pound to twelve gallons of water. 1 spring, place in the green-house when 



Nitrate of Soda destroys slugs. 



Phosphate of Lime. — The importance part of May, bed them out ; they bloom 

 of bones and other manures containing beautifully during the summer and au- 

 phosphoric salts as a general manure, turan 

 34 



the seedlings come up ; and in the early 

 Vlay, bed them out ; they bloom 

 lly during the summer and au- 

 For beds they arc superior to 



