* 
~ 
Rees ee ae ee 
EXPERIMENTS witH Nursery SToox. 675 
9. Tricupric orthophosphate mixture : 
: Cupric sulphate (bluestone) ................. .... grams 14.90 
(Toe SSS 7 Ta ae dl crams 26.07 
NN oe ey eee cit oc te Sale de -dy Ra ean gallon 1.00 
10. Cupric polysulphide mixture: 
Cupric sulphate (bluestone) .................0..-- grams 14.90 
Potassium sulphide (liver of sulphur)............. grams 14.90 
LOT Bree iaircats eae Mach Aimer igteg cena gallon 1.00 
Ir. Copper sucrate mixture: 
Cupric sulphate (bluestone) ..................... orams 14.90 
ME tn IL Raia’, wa aisine ache ye cca ks grams 14.90 
Potassium hydrate (caustic potash)............... grams 14.90 
\y 2a Se Baie pe Weer use Ns eben arya tig al 4 gallon 1.00 
(The cupric sulphate and sugar are added together in one 
quart of water and brought to boiling; then the potassium hydrate 
dissolved in one pint of water is added and the whole made up 
to one gallon.) 
12. Copper silicate mixture: 
Cnprie sulphate (bluestone) ............. Ng ebariarat a orams 14.90 
Sodium: silicate (water glass)................0.66. grams 44.70 
eee ss... “iO 7 IPN 2 JS eRe EO Ir gallon 1.00 
13. Cupric sulphate, ammonia and soap mixture (soap eau 
celeste) : 
Cupric sulphate (bluestone) .............5.0.065. grams 14.90 — 
Aqua ammonia (ammonia water 26 B.).......... Cay Ge 15 
TCS VP TES IID SS a grams 44.70 
PWAUET ee nee here etie teen ee eee eae, allon 1,00 
