842 Annual Report for 1891 of the Consulting Chemist. 
points in the analysis which I could not reconcile satisfactorily with 
this conclusion. I suggested, therefore, that perhaps the jar haa not 
been properly cleaned, and that it would be better to send a fresh 
sample. This was done, and the water v/as again analysed, giving 
then the following results : — 
Grains per 
gallon 
Ox:idisahle organic matter -15 
Trm ammonia ........ "003 
Albuminoid ammonia -001.5 
These figures were very different from those first given, and were 
quite consistent with the other parts of the analysis, as also with 
the composition of a water from a pure drinking supply. 
It has been my practice to conclude my annual report by giving 
a few analyses of miscellaneous matei-ials which have come under my 
notice during the year. The following are some examples of this 
class. 
Soot. — A sample procured with considerable care, so as to obtain 
nothing but the fine soot itself, as deposited in a chimney, gave the 
following high analysis : — 
"Water ^4-70 
Ammoniacal salts and organic matter . . . 72-61 
Oxide of iron, lime, &c. ...... 13 35 
Siliceous matter 9'34 
100-00 
' Containing nitrogen .... <>-01 
Equal to ammonia . . . . . 7'33 
Deposit from Wool-chaniiuj . — In the water used for wool-cleaning 
a considerable amount of deposit forms ; this, after drying, can be 
used as a manure. Analysis of a sample gave the following : — 
Water 4-79 
* Organic matter 41-03 
Phosphate of lime -31 
Oxide of iron, &c 4-47 
Sand 49-40 
100-00 
' Containing nitrogen .... 2-64 
Koual to ammonia ..... 3-21 
More than lialf of this is sand and earthy matter, but still there 
is over 3 per cent, of ammonia, and the material was in a nice dry 
state. When broken up it would do well for mixing with artificial 
