1807.] List of New 
mals. © Without fpecifying the experi- 
ments we thall prefent the readers with 
the refults : 
In 100 parts of camel’s urine, 
Water - - - -.- = = = = +75 
Phofphat of lime, muriat of ammonia, 
fulphat of potals, urea of potats, 
Carbonat of potafs - - - - - 6 
Muriat of potals - - - - - - 8 
Urea - - =e = ef we = 6 
95 
Tn 160 parts of cow’s urine, 
Waters (2 he te ei eel e265 
Phofphat oflime, - - - - - - 38 
Muriat of ime, ofammonia - - - 15 
Sulphat of potafs - - - - - - 6 
Carbouat of potafs, of ammonia - 4 
Ureas se ee Re ee 
97 
The lofs is Anise to have occurred 
from the animal matter, probably albu- 
men and gelatine. The principal and 
only eflential dilference between the 
wuune of the came! and that of the cow, 
is, that the former contains uric acid, 
They are both deftitute of foda. Mr. 
Hatchet obferves that it is remarkable 
that uric acid fhould be found in the ca- 
mel’s urine, aud he thinks jt is the firt 
inftance on record, as far as'relates to 
the urine of graminivorous animals. 
Dr. Smirnson has preiented to_ the 
fociety anaccount of a dilcovery of na- 
tive mimium, which is difleminated in 
{mall quantities. in the fubfiauce ef eom- 
pact carbenat of -lime. [ts colour is 
that of faétitious minium, a vivid red 
with a caft of yellow. Heated with a 
Publications. 63 
blow-pipe, it afumes a darker colour; at 
a.ftronver heat it melts to litharge. Oa 
charcoal it is reduced to lead. In dilute 
white acid of nitre, 1t becomes of a brown 
coffee colour. On the addition of a lictle 
fugar, this brown calx ditlolves and pre- 
uces a colourlefs folution., ‘By putting 
into muriatic ucid with a little leaf vold, 
the gold is foon entirely diffoived. When 
it is inclofed in a {mall bottle with muri- 
atic acid, auda httle bit of paper tinged 
by turnfol is fixed to the cork, the paper 
lofes its blue colour, and becomes white. 
A firip of common blue paper, whofe ce- 
louring matter is indivo, placea in the 
fame Busnes undergoes the fame change, 
Mr. S. imazines that this native miniuna 
is produced by the decay of a galena, 
which he fafpetts to be itfelf a fecondary 
production from the metallization of 
white carbonate of lead by hepatic gas. 
This is particularly evident from a {peci- 
men, im one part of which there is a clui- 
ter of lar: ue ee Having broken ene 
of thefe, 8. found that it was con- 
verted ane lamium to a confiderable 
thicknefS, while its centre is ftill galena. 
Two very excelient mathematical pa- 
pers were communicated to the Royal 
Society, and read on the 5th of June laf ; 
the one,from the Rev. AprRauwaM Roneri- 
SON, Savilian profeflor of geometry in the 
ees of Oxford, was anew demon- 
ration of the Binomial Theorem, whea 
et Sener is a fraction. The other 
was a hew method of computing loga- 
rithms by mas Mannine, efy. Theie, 
however, noe admitting of an analyiis, 
we mut content ourfelves with barely 
noticing. : 
aa 
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