MONOGRAPHS. - Contmued. 
(In couree of preparation.) ' 
—Progress in alkaloidal chemistry for 1905. By H. M. Gordin. 
-The Volatile Oils: 1905. By I. W. Brandei. 
— Percolation. A brief hißtorical account, followed by a Statement of 
general principles, a complete bibliography and laboratory exerciees. 
Intended primarilv for students of pharmacy. By I. W. Brandei and 
Edw. Kremers. 
—The Volatile Oils: 1901—1903. By 1. W. Brandei. The manuscript 
is practicallv completed. When publiehed, these annual reviews will 
eonst.itute a complete Supplement to G.-H.-K. “The volatile oils.’' 
See the secon d cover page. 
BIBLIOGRAPHIES. 
1. Chemical Biography of Morphine. From 1875 to 1897, with 
an index of authors and subject index. By H. E. Brown. Pamphlet, 
pp. 60. $0.40 
2. Santonin. Bibliography, with abßtracts of methods of production 
etc. From 1830 to 1897. By A. Van Z walu wenburg. Pamphlet. 
pp. 11. $0.10 
3. Bibliography of Apiol. From 1855 to 1896. By A. Van Z w ä- 
hl wenburg. Pamphlet, pp. 4. $0.05 
4. Bibliography of Spirit of nitrous ether, and ethyl nitrite. 
Up to 1899. By W. 0. Richtmann and J. A. Anderson. 
Brochure, pp. 180. $1.00 
ö. Bibliography of aromatic xvaters. From 1809 to 1900 incl. 
By W. O. Richtmann. Brochure, pp. 219. $1.00 
In addition to the pamphlet form, these bibliographies will be found 
very convenient for card catalogues w T hich can be kept up to date as indi- 
cated by the following fascimile reproduction of such a card. 
