470 Mr. Chatterley’s Experiments on Saline Manures 
cyanide of lead, or by heating together lead and sethogen. 
It phosphoresces with a green light. 
Aithonide of silver may be obtained by heating together 
chloride of silver and zethonide of zinc, or by heating together 
eethogen and silver. It is a light white solid, and is not acted 
upon by any of the re-agents with which it was tried, not even 
by chlorine or hydrogen at a full red heat. This compound 
phosphoresces with a peculiarly fine green light. 
I believe I have obtained zethonides of several other metals 
by heating their chlorides with zthonide of zinc, but the 
quantities operated upon were too small to give certain re- 
sults. 
I am bound to apologize for sending in my results without 
an analysis, but the means of doing otherwise are not in my 
power, and I am in hopes that Dr. Kane will oblige us with 
more valuable data than I could furnish. 
Liverpool, Nov. 28. 
LXXX. Report of some Experiments with Saline Manures 
containing Nitrogen, conducted on the Manor Farm, Ha- 
vering-atte-Bower, Essex, in the occupation of Collinson 
Hail, Esq. By W.M. ¥F. Cuarrer.ey*. 
JNDUCED by the prevailing opinion that upon the quantity 
of Nitrogen contained in some animal and saline manures, 
depend their fertilizing properties, it was decided to test, by 
experiment, the relative value of three saline manures con- 
taining that element as a constituent, viz. nitrate of potash, 
nitrate of soda, and sulphate of ammonia, all these salts, from 
their commercial price, being within the reach of the farmer for 
agricultural purposes, provided a sufficient amount of profit 
for the outlay can be shown, and that of course would be 
preferred by the agriculturist which yields the greatest profit 
on the prime expenditure. 
For the purposes of the experiment a field of WHEAT was 
chosen, which in the latter end of April, 1842, presented a 
thin plant, the saits were top-dressed over the land by hand, 
on the 12th of May, in the quantities stated in the table 
below; the crop was mowed on the 10th of August, and the 
separate parcels taken from an eighth ofan acre, threshed, 
measured, and weighed under my own inspection on the 24th 
of August. The results are as follow for the acre:— 
* Communicated by the Chemical Society ; having been read Decem- 
ber 6, 1842, See Phil. Mag. S. 3. vol. xxi. p. 488. 
