Report of the Consulting Chemist fur 1869. 
140 
Instead of 14^- per cent, of ammonia, as in the analysis No. 1, 
No. 2 barely contained 2^^ per cent. The latter further con- 
tained scarcely one-third the amount of phosphates which is 
found in genuine Peruvian guano, and appeared to be princi- 
pally made up of gypsum and a yellowish-coloured loamy soil. 
The next illustration of a spurious guano was furnished in a 
sample sent for analysis by Mr, Alexander Howden, Marston 
Court, Pcmbridge, Herefordshire, who informed me that he 
bought it of Messrs. G. C. Dobelf, and Co., of Liverpool. These 
gentlemen maintain that this is guano genuine as imported. 
This may be quite correct, for they may have imported a spurious 
article ; nevertheless, it is not a genuine guano, but a compound 
resembling guano in external characters, and having but little 
else in common with that fertiliser. 
Spurious Guano sent hi/ Mr. Alexander Howden, Marston Court, 
Penihridge, Herefordshire. 
Moisture 11-53 
*Organic matter, salts of ammonia, and water of) ^.^-j^ 
combination ) 
fPhosphoric acid 13-07 
Lime 2-96 
Oxide of iron and alumina 14-64 
Alkaline salts traces 
Insoluble siliceous matter (fine clay and sand) 48-29 
100-00 
* Containing nitrogen '73 
Equal to ammonia "89 
t Equal to tribasic phosphate of lime. . . . 28-53 
These analytical results do not require any explanation. 
The latest case was brought under my notice by Mr. H. 
Carneby-Lutley, Brockhampton Court, Worcester : — 
Composition of a Sample of Adulterated Guano marlced " Feathers," seid 
by Mr. H. Barneby-Lutley, Brockhampton Park, September, 23. 
Moisture 7-27 
'Organic matter and salts of ammonia .. .. 14-31 
Phosphate of lime (bone phosphate) .. .. 5-83 
Oxide of iron and alumina G-42 
Carbonate and a little sulphate of lime .. .. 10-98 
Alkaline salts 4-33 
Insoluble siliceous matters (saud) 50-86 
100-00 
* Containing nitrogen . . • 2-34 
Equal to ammonia 2-84 
It will be seen thafthis so-called guano contained only 5 J per 
cent, of phosphate of lime in round numbers, instead of 22 to 
