344 



fHOCKKDINCS OF THE 



July \, 1849. 

 GARDEN COMMirrEE. 

 Read ihc following reports, 



A portion of the mown grass in the Arboretum was divided 

 into stjuares, containing a rod each, for the purpose of ascertain- 

 ing the effect of various manuring substances. On the *24th of 

 November, 1841, those substances were applied, and on the 4th 

 of May, 1842, the squares were mowed, with the results given in 

 the following table. Unfortunately the spring of 1842 was so 

 dry and cold as to render the experiments comparatively unim- 

 portant, and when the grass was beginning to grow it was neces- 

 sary to put an end to them, in order to make way for the ar- 

 rangements connected with the Exhibitions at the Garden. 

 Nevertheless it is thought desirable to put the results on record. 



Substance applied. 



Nothin^r 

 Sea Peat 



Nitrate of Soda . 



Ditto . 

 Nitrate of Potash 



Ditto 



Salt cake ; impure 

 sulphate of Soda 

 Ditto . 



Gas water 



Ditto . 



Ditto . 

 Gas Liine 



Ditto . 



Sulphate of Iron . 



Ditto . 



Ditto . 

 Muriate of Lime . 



Ditto . 

 Charcoal dust 



Ditto 

 Bleaching Powder 

 (Chloride of Limej 



Ditto . 



Sidphate of Copper 



Ditto 

 Ditto 



Quantity per acre. 



H cwt 



1 cwt. 



2 cwt. 

 1 cwt. 

 2c wt. 



1 cwt. 



2 cw-t. 



160 galls, diluted \vith 

 7 times the quantity of 

 water. 



320 galls. 

 640 2-aUs. 



1 ton 



2 tons 



25 lbs. I 



L 



60 lbs. I 



100 lbs. 



1 cwt. 



2 cwt. 



1 cwt. 



2 cwt. 



1 cwt. 



2 cwt. 



25 lbs. { 



50 lbs. 

 100 lbs. 



Weight of grass when 

 mowed. 



15 lbs. 



15 lbs. 



16 lbs. 



22 lbs. 

 16i lbs. 



17 lbs. 



14 lbs. 

 14 lbs. 



20 lbs. 



43 lbs. 

 67 lbs. 



19 lbs. 

 30 lbs. 



no effect : but the clo- 

 ver unusually thick 

 and strong, 

 ditto, clover stronger 

 still. 



ditto, ditto, 

 no effect, 

 ditto. 



20 lbs. 



23 lbs. 



30 lbs. 



30 lbs. 

 no effect, no white 

 clover, 

 ditto, 

 ditto. 



