the tree in effecting its solution, and, with this view, I have caused a handful or 

 two, according to the size of the tree, to be applied upon the soil, and forked in to 

 the distance of about three or four feet around each one, at the time of the exami- 

 nations for worms in May and September. A dose of guano, to the same extent, 

 in lieu of the above, is also excellent. 



Under this system, which is by no means expensive or burdensome, I am well 

 repaid by regular and large crops of the finest fruit. I have never had a case of 

 the yelloirs, unless, through some oversight, a tree has been neglected at the 

 examinations for worms, and the application of the alkaline manures has been 

 omitted. 



In my judgment, this disease is owing entirely to a want of attention or neglect 

 of one of the important points I have adverted to, and when a tree, through neglect, 

 has become affected with the yellows, I have in no instance known it to extend to 

 the other trees upon which attention had been duly bestowed. 



\_Remarks. — The foregoing is worthy of minute attention from all who possess 

 a peach-tree ; it is the result of experience, attended by as great success as we 

 have ever seen, and may not only be now read, but should be referred to annually. 

 —Ed.] 



EFFECTS OF FROST IX THE SAME LOCALITY. 



Few things have more perplexed gardeners than the different degree in which 

 the sgime species of plant has been affected by frost in the same locality. The 

 last two winters have afforded abundant examples of plants destroyed and un- 

 harmed in the same garden or village, under what have been thought to be iden- 

 tical circumstances. Many of these cases have appeared to be so little explicable 

 by differences of temperature, that he who would interpret such phenomena has 

 been obliged, in some instances, to assume that different individuals of the same 

 species possess different degrees of vitality, which renders some more able than 

 others to resist a low temperature. 



We find in the '^Revue HorticoW'' some valuable observations upon this point, 

 by M. Charles Martins, Avho has very carefully studied as a physicist* the 

 effects of the last two winters at Montpellier. Without denying that the vital 

 power of individuals differs considerably, he has nevertheless sought to explain 

 the phenomena which were presented to him by reference to mere differences in 

 temperature ; and we cannot do better than give a concise account of the result 

 of his inquiries. 



In the first place he points out the great differences in temperature which are 

 known to occur in places quite contiguous to each other, but which are unsus- 

 pected by the ordinary observer. By way of illustration he takes some details 

 supplied by M. Rendu from Yendome in 1852. The valley of Iluchingy, about 

 a mile and a half from that place, is 200 yards wide, and bordered by little 

 eminences only 40 yards high. In this place it is always found that the winter 

 temperature, when the wind is in the north, is from 5° to 15° lower than at Yen- 

 dome. For instance, Jan. 24, 1852, the temperature at Yendome was 2G°, and 

 at Huchingy at the same hour 21°. Feb. 21, Yendome 26°, Iluchingy 19°. 

 March 4, Yendome 28^, Huchingy 17i°. Finally, on the 20th of April, while 

 the air of Yendome was 30°, the thermometer fell at Huchingy to 15°. Such 

 differences, he remarks, are the necessary consequence of the laws of heat, and it 



This word has been lately proposed as the English form of the French word phj 

 we willingly adoi)t it. 



