NOTES. 
[1131 
100 grains in an ordinary wine-glass and add thereto an ounce of liquid ammonia. 
In proportion as there is little or no sediment the green may be considered pure. 
HOTfl 48 (p. 145). — This mixture consisted of 6 pounds of the green to one barrel 
of Hour, in addition to about '20 pounds of adhesive materials; in round numbers, 
therefore, of 1 pound of gr e e n to :'»". pounds diluents, this proportion being generally 
nsi'd near Selma, Ala. 
NOTE 49 (p. 162). — The following note on tin- use of kerosene on cotton is from Dr. 
Bernard's report of experiment made at Selma (Ala.), in the summer of 1883. (Bull. 
3, Entomological Division, United States Department of Agriculture, p. 47): 
Concerning the use of kerosene upon cotton, the following should be stated: 
About 10 gallons wen- applied, half undiluted and half in emulsion variously diluted. 
The undiluted petroleum destroyed about l<» per cent, of the foilage sprayed by it. 
The undiluted milk-kerosene emulsion ruined only about 2 per cent., and this diluted 
injures less and less according to the attenuation, but all treated was injured to at 
least a slight extent. The sprays were haidly satisfactory, as the tubing would not 
permit the high pressure necessary for a very fine mist, and the indications are that 
with the liuest spray the strong kerosene and its slightly diluted preparations may 
possibly yet become used, in proper hands with great caution, upon the crop, but 
additional experimental test s are needed 
Note 50 (p. 10.")).— Mr. Willemot calls his plant I'l/rithn dn 0OM0O96 (Pyrtihntm 
willemeti Duchartre), but it la more than probable *t h a t this Is only a synonym of 
Pyrethrum rout tun. We have drawn liberally from Willeinot's paper on the subject, 
a translation oi which ma,\ be found in the Report of the Commissioner of Patents 
for the \ ear 1-01, Agriculture, pp. 22:1-2:51. 
NOTE 51 (p. 107). — A very good illustration of the growth of the product ive industry 
in this country is afforded by the fact that Mr. George Laird, superintendent of the 
Biihach plantation, produced about 40 tons of blossoms in 1884, and employed some 
250 Chinamen during \'-'< d:i\ < in gat lu ring the crop. 
It has generally been supposed t hat I'yret brum is innocuous to animals, but in this 
connection we (piote some remarks from an address which we delivered before the 
Georgia Stale Agricultural Society. February 12. 1 1 : 
Pyrethrum is supposed to have no effect on the higher animals, but that is a mistake, 
as my ow n recent experience is that the fumes in a closed room ha\ e a toxic influence, 
intensifying sleep and inducing stupor ; while 1 he experience of Prof. A. Graham Hell, 
with the powder copiously rubbed on to a dog, showed that t he animal was ma'le sick 
and was affected in the locomotive organs very much as insects are. The wonderful 
influence of fliis powder on insects has led me to believe thai it might prove useful 
as a disinfectant against fevers and various contagions diseases by destroying the 
microzoa and ol her mici o-oi ganisins, or germs which are believed to produce such dis- 
eases. It should be tried for that purpose. It is remarkable that these two plants of 
all the many known species of the genus, should alone possess the insecticide prop- 
erty. 
Note 52 (p. 174). — It is evident that Pyrethrum can be produced as cheaply in Cali- 
fornia, with the Chinese labor, as in any other part of the country; yet the reduction 
in price has not been as great with the increase of production as we have been led to 
hope. We cannot find in any case that it has been ottered for less than 50 cents per 
pound, when the purity is guaranteed, though a New York firm informs us that they 
will be able to sell as low as 30 cents in large quantities. 
Note 53 (p. 179). — Indirectly, also, such enemies of Aletia are killed as feed on the 
poisoned worms, and in receutly poisoned fields dead birds and larger ground beetles 
have been reported found, the destruction of which must doubtless be attributed to 
the poison. The number of such cases is, perhaps, larger than can be actually proven. 
Note 54 (p. 184). — In order to illustrate how positively this and other plants, here 
enumerated, were recommended to the Commission, we give herewith, without further 
comment, the following letter from a correspondent in Mississippi : 
Some years since, when a caterpillar was stripping the oaks in front of my yard, 
I observed that some which had ascended an Ailanthus tree (frequently called "the 
0.°, CONG— A P 8 
