PHYSICS, CHEMISTRY, ETC. 115 



Otto, Robert. Anleitung zur Ausmittelung der Gifte und zur Erken- 



nung der Blutflecken bei gerichtlich-chemischen Untersuch- 



ungen, 7. edition, 1896. 



Otto, Richard. Grundziige der Agrikulturchemie, 1899. 

 Parnicke, A. Maschinellen Hilfsmittel der chemischen Technik, 



2. edition, 1898. 

 Parry, Ernest J. Chemistry of essential oils and artificial perfumes, 



1899. 

 Phillips, J. Arthur. Treatise on ore deposits, 2. edition, rewritten 



and greatly enlarged by Henry Louis, 1896. 

 Pictet, Ame. Pflanzenalkaloide und ihre chemische Konstitution, 



German adaptation by Kichard Wolffstein, 2. edition, 1900. 

 Plattner's Probirkunst mit dem Lothrohre, 6. edition (Kolbeck), 



1897. 

 Prescott, Albert B. Organic analysis; a manual of the descriptive 



and analytical chemistry of certain carbon compounds in com- 

 mon use, 5. edition, 1901. 

 Prescott, Albert B. Outlines of proximate organic analysis for the 



identification, separation and quantitative determination of 



the more commonly occurring organic compounds, 4. edition, 



1893. 

 Prescott, Albert B. and Johnson, Otis C. Qualitative chemical 



analysis; a guide in the practical study of chemistry and in 



the work of analysis, 4. edition, 1899. 

 Prescott, Albert B. and Johnson, Otis C. Qualitative analysis; a 



guide in qualitative work, with data for analytical operations 



and laboratory methods in inorganic chemistry, 5. edition, 



entirely rewritten, 1903. 



Rack, John. French wine and liquor manufacturer, 4. edition. 

 Rammelsberg, C. F. Handbuch der Mineralchemie, vols. 1-2 and 



supplement in 2 vols., 2. edition, 1875-1886. 

 Rammelsberg, C. F. Leitfaden fur die quantitative Analyse. See 



Friedheim's Leitfaden fiir die quantitative Analyse. 

 Remsen, Ira. Introduction to the study of the compounds of carbon 



or organic chemistry, 1898. 

 Richter, M. M. Lexikon der Kohlenstoff-Verbindungen, vols. 1-2 



and supplement, 1900-1901. 



