183 
the whole tree to become so. Seventh—The malady does not 
appear to spread in the grove, but may occur at several points 
simultaneously. The evidence of these facts points to a fungus 
origin for the disease. 
REMEDIES.—The application of the following are recom- 
mended for trial as having fungicidal properties: /zrst—A solu- 
tion: of bisulphide of potassium, % ounce to a gallon of water. 
Second—* Liquid grison,” prepared by boiling 3 Ibs. each of the 
flowers of sulphur and lime in 6 gallons of water until reduced to 
2 gallons. When settled, pour off the clear liquid and bottle it 
for use. For use mix one part of this clear liquid in 12 gallons 
of water. Zhzrd—To to gallons of strong soap suds add about 
a pound of glycerine and one-half pint of carbolic acid. 
These solutions should be applied in the form of a fine spray 
,to the diseased trees. As intimated, what action they may have 
towards arresting the malady can only be determined by experi- 
ment. 
Pinus monophylla and Pinus edulis. 
In the BULLETIN for May, 1885, I published a note on my 
observations on Pinus edulis and Pinus monophylla in the far 
West. By these observations I was convinced that Pinus 
monophylla is but a variety of P. edulis, a variety confined to the 
more arid portions of the area it occupies; and I was led to con- 
sider P. monophylla as a desert plant, in which the leaves are 
consolidated to diminish their surface area; following the example 
of Cactus, Holacantha, Canotia, Ephedra, etc. 
I am sorry to see from a note in the Gardeners’ Chronicle of 
July 31st, that Sir Joseph Hooker does not accept my view of the 
case. He says, of my article, that ‘it reads well, but is not sup- 
ported by facts.” Now, with due respect to the great botanist whom 
we all delight to honor, Iam compelled to appeal from his decision. 
If he could have had my experience, and had himself observed 
the facts from which I infer the specific identity of the two forms, 
I am quite sure he would accept the view I have advanced. It 
happéns that I have spent two full years in the region occupied 
by the pines under consideration, and during that time I 
traversed nearly their entire habitat, viz., Nevada, Utah, Colo- — 
tado, New Mexico, Arizona and Chihuahua. . As botanist of the — 
