xvi 



INTRODUCTION. 



from the roots again ; as examples, the reader is referred to p. 16, 

 an Arbutus stood the winter but began to flag in April when three- 

 fourths of the tree died ; p. 37, Lombardy Poplars shewed late evi- 

 dence of injury ; p. 87, Portugal Laurels shewed no visible sign of 

 injury till the foliage fell in spring; p. 124, severe injuries only 

 detected by the effects of E. winds in spring. (See also pp. 26, 46, 

 47, 90.) 



Age. The age of plants as well as of parts of plants is often 

 an important factor in the power of resistance to frost. In some 

 cases the younger trees survived,* while the adult or aged trees of 

 the same kinds perished. M. Duchartre records from certain parts 

 of France that trees from 15 years of age and upwards perished, but 

 chiefly survived below that number ; elsewhere trees below 10 years 

 of age appeared to be better able to resist frost ; e.g. amongst Plums 

 and Cider Apples. Trees planted but one or two years only escaped. 

 On the other hand M. Alf. Cottin observed that in the parts of the 

 plantations of Mont Trouillet near Paris, situated on low ground, 

 trees of 0, 30, 50 and even 100 years old succumbed ; while the very 

 few that survived were young and newly planted trees. 



In the following reports young and old appear to have suffered 

 pretty equally. In some cases the younger, in others, the older of 

 the same species were injured ; as will be seen by referring to the 

 Index of Age. 



INDEX TO COUNTIES. 



England and Wales. Anglesea, 115, 117. Bedfordsh., 23, 25. 

 Berks., 3, 5, 195, 197. Bucks., 23, 27, 218, 219. Cambs., 23, 29, 

 218, 221. Cardigansh., 116, 122, 301. Carmarthen, 116, 121, 

 297, 301. Carnarvon, 115, 118, 298. Cheshire, 91, 92, 276, 277. 

 Cornwall,t 49, 50, 235, 237. Cumberland, 104, 105, 288, 289. 

 Denbighsh., 115, 119, 297, 298. Derby, 75, 76, 264,265. Devon, 



* This also occurred near Ware in 1861. Gard. Ckron. 1861, p. 95* 

 t See Jl. o/Hort., 1880, June 17th. 



