carcass does buzzards. The effects of the disease have 

 often been mistaken for the cause. The sap is not properly 

 manufactured by the roots ; the laboratory below has not 

 the right kind of material to work up a healthy circulating 

 medium, hence, the leaves do not elaborate the sap into 

 the proper elements for wood growth, and the result is pale, 

 succulent, rapid growing sprouts, which contain a dispro- 

 portion of gum and glucose. These unhealthy growths, 

 not being able to resist the effects of the sun's rays, often 

 blister and crack ; the sap oozes out, dries on the surface 

 in the form of tears, which are sweet and succcilent, and 

 thereby attract all sorts of insects and ants. These sprouts 

 not having the elements necessary for healthy branches, 

 often wither and die back to the part of the tree from 

 which they started ; hence, we have the "die-back" and the 

 " gum disease" all in one. The cause is undoubtedly at 

 the root ; the effects dyspepsia, from defective or pernicious 

 plant food ; the remedy, proper location, cultivation and a 

 potash, soda and lime diet. 



The same dyspeptic symptoms in the tree, may some- 

 times be produced by over feeding, or a surfeit of rich ni- 

 trogenous manure, but we think such instances are rare, 

 and the disease more likely to occur from too much acidity 

 in the soil. 



RUST ON THE ORANGE. 



Although rust on the rind of an orange is not consid- 

 ered detrimental to the qualities of the fruit, yet it detracts 

 from its external appearance wonderfully, and reduces its 

 market value in a corresponding degree. 



There has been much speculation as to the cause of 

 this abnormal condition, and the experiments of investiga- 



