Quarterly Report of the Chemical Committee. ' 223 
Analyses made for Members of the Royal Agricultural Society, December 
1870 to December 1871. 
Guanos 78 
Super] )liosphates, dissolved bones, wheat manures, and) 
similar artificial manures j 
Bone-dust 36 
Refuse manures 31 
Nitrate of soda, sul]ibate, of ammonia, and potash salts .. 31 
Marls, limestones, fireclays, and other minerals .. .. 20 
Soils 44 
Oilcakes 212 
Feeding meals 24 
Vegetable productions 12 
Waters 36 
Examinations for poisons 4 
Total ■ .. 730 
(Signed) AUGUSTUS VOELCKER, F.R.S. 
XI. — Quarterly Report of the Chemical Committee. 
December. 
1. Dr. VoELCKER reports the analyses of three samples of guano 
sent to him by Mr. H. W. Mollis, Estate Offices, Keele, near 
Newcastle, Staffordshire, in May, 1871. These three guanos 
were found to have the following composition : — 
No. 1. 
No. 2. 
No. 3. 
7-56 
7-02 
15-55 
*Organic matter and ammoniacal salts 
21-67 
21-91 
40-25 
14-85 
15-34 
23-05 
9-67 
10-31 
8-08 
7-20 
6-06 
38-17 
38-22 
15-08 
100-00 
100-00 
100-00 
4-56 
5'01 
9-55 
5-54 
6-07 
11-59 
The prices of the three samples were — No. 1, 14/. ; No. 2, 
12Z. 15s. ; No. 3, 16Z. 
