CONTENTS. 



XV 



XLI. On the Want of Permanence of Character in Varieties 

 of Fruit, when propagated by Grafts and Buds. By Tho- 

 mas Andrew Knight, Esq. F.R.S. $c. President, p. 160 



XLII. Notes relative to the First Appearance of the Aphis 

 Lanigera, or the Apple-Tree Insect, in this Country. By 

 the Rght Honourable Sir Joseph Banks, Bart. G. C. B. 

 P E S. $c. p. 162 



XLIII. On the Form which the Glass of a Forcing-house ought 

 to have, in order to receive the greatest possible quantity of 

 Rays from the Sun. In a Letter to the Right Hon. Sir 

 Joseph Banks, Bart. G. C. B. P. R. S. $c. By Sir George 

 Stewart Mackenzie, Bart. F. R. S. $c. ^.171 



XLIV. On the Mode of Propagation of the Lycoperdon can- 

 cellatum, a Species of Fungus, which destroys the Leaves 

 and Branches of the Pear Tree. By Thomas Andrew 

 Knight, Esq. F. R. S. Spc. President. p. 178 



XLV. On the Connection between the Leaves and Fruit of 

 Vegetables, with other physiological Observations. By 

 Anthony Carlisle, Esq. F. R. S. fyc. p. 184 



XLVI. On enriching the Soil of Gardens by fresh vegetable 

 Manure. In a Letter to the President. By the Rev. 

 James Venables. p. 189 



XL VII. On the Preservation of Fruits during Winter and 

 Spring. By Thomas Andrew Knight, Esq. F.R.S. $c. 

 President. p. 193 



XL VIII. On a remarkable Property of the Hoya Carnosa. 

 In a Letter to the Secretary. By Mr. John Maher, 

 F.H.S. p. 197 



XLIX. On the Effects of different Kinds of Stocks ingrafting. 

 By Thomas Andrew Knight, Esq. F. R. S. fyc. President. 



p. 199 



