-6- 



That Martha's Vineyard has a viild cranberry bog which has been produc- 

 ing cronberrios for about 300 years? This bog is in Gay Head and is given by 

 the Commonv/ealth in perpetuity as the common possession of the descendants of 

 the Gay Head Indian tribe. Following ancient tradition, the day of picking is 

 decreed by the heads of the Gay Head group. The first day of the harvest is 

 exclusively for the Indian descendants. These vdld cranberries are rather 

 light in color, of medium size and good flavor. 



That this is an ideal time of year to destroy, or at least mark for 

 destruction, peach trees suspected of having X-disease or other virus troubles? 

 J. R. Magness of the U.S.D.A. points out that the spread of X-disease is in 

 geometric proportion to theanount of infected material. Where but one peach 

 tree is affected in on orchard, the spread is slow. But if 10/j of the trees 

 are infected, the spread is rapid. It is much easier to detect virus troubles 

 in a peach tree in late summer or fall than it is in spring. 



That a liberal application of nitrogen on a soil deficient in certain 

 other necessary elements, will tend to accentuate those deficiencies, as re- 

 vealed by leaf symptoms? More and larger leaves and more terminal- growth, re- 

 sulting from the nitrogen application, will call for more potash, magnesium 

 and other elements. If such elements are lacking in the soil, the leaves will 

 therefore show more pronounced deficiency symptoms. 



That publications on the fruit industry in each of three South Amer- 

 ican coiontries, Argentina, Brazil, and Chile, are now available? These reports 

 have been prepared by Prod A. Motz of the Office of Foreign Agricultural Rela- 

 tions, (The v;ritor has a couple of extra copies in case any reader of Fruit 

 Notes is interested.) 



That there seems to be a definite relationship between the acidity of 

 the cell sap of plant leaves and the sensitivity of the plant to injury by 

 sulfur or by copper? The acids resulting from the oxidation of sulfur on a 

 leaf might be expected to cause less leaf injury if the fluid within the leaf 

 is already rather acid, than if it is relatively alkaline. Thus if sulfur were 

 applied to a plant having cell sap near the neutral point, a small amount of 

 acid from the oxidized sulfur might precipitate the plant protein and cause 

 severe injury. Copper, on the other hand, would tend to remain in insoluble 

 form on such a leaf. The following data reported by 0. C. Boyd in Crop Disease 

 Notes several years ago helps to illustrate this relationship. 



That the angry thunder of Russian artillery is to some extent dependent 

 upon the. read'justment of soil, management practices in America? By growing a 

 single acre of red clover, and plowing it under, a farmer is replacing enough 

 nitrate of soda or other commercial nitrogen to make the gunpov^der needed for 

 hurling 150 105-mra. shells 9 miles into enemy territory. The roots and stubble 

 of a red clover crop may add about 50 pounds of nitrogen to the soil, or the 



