PROCEEDINGS 



OPTHB 



PHILOSOPHICAL SOCIETY OF GLASGOW. 



FORTY-FIRST SESSION, 1842-43. 



CONTENTS. 



Lord Blantyre on Experiments on Various Manures, .... 93 



Mr. Dove on E.\periments with Manures on Potatoes, .... 94 



Mr. M*Lintock on Experiments with Manures on Oats and Turnips, . 97 



Mr. Crum on the Manner in which Cotton unites with Colouring Matter, 98 



Dr. Penny on a Specimen of Artificial Asbestus, 104 



Notice of New Zealand Minerals, 105 



Mr. Gourlie on the Fossil Plants in the Gla.igow Geological Museum, . 105 



ISth January, 1843, — The President in the Chair. 



Drs. M'Neil, Quinlin, and Messrs. Thomas Johnston, Thos. Graham, 

 W.S., Andrew Thomson, Alexander Mitchell, junr., Robert Graham, 

 Andrew Oswald Mitchell, Henry Wardrop, Thomas Kyle, Robert Patti- 

 son, John Tennant, and Charles James Tennant, were admitted as 

 members. The three following papers were then communicated by 

 Dr. R. D.Thomson :— 



XXV. — Experiments on various Manures. By Lord Blantyre. 



TABLE L 



Experiments with Oats at West Harlands, Benfrewshire, J Imperial Acre 



each plot. 



Application. 



No application. 



TurnbuU's Humus, 10 bushels, @ Is. 



Improved Bones. 56 lbs. 6s. per cwt. 



Sulph. of Soda, 56 lbs. 6s. per cwt. 



Foreign Guano, 28 lbs. 258. per cwt. 



Sul. Ammo. 28 lbs. 208. per cwt. 



British Guano, 56 lbs. 83. per cwt. 



Soot, 10 bushels, @ 3.Jd. 



Nit, of Soda, 28 lb<. @ 258. per cwt. 



v h o 



717 

 644 

 675 

 762 

 768 

 770 

 788 



bsh. lbs. 

 12 10 



11 8^ 



11 2 



12 ... 

 12 4 

 12 22 



12 17^ 



13 30.3 

 12 21 



lbs. 



41 



41 



41 



40 



4U 



40 



41^ 



41 



42J 



lbs. 



si 



r 



bsh. lbs. 



12 



n 



20 

 11 



28.8 



26.6 



29.42 



32,75 



27.76 



28V6 



Remarks. — The Grain of No. 1 . passed through the hummeler, which seems to have 

 increased the weight per bushel 2.^ lbs. 

 The weight of the Light Corn was 29.J lbs. per bushel. 



No. G. 



