530 Journal of Agricultural Research voi. x, No. lo 



(20) KoEBELE, Albert. 



1893. EXPERIMENTS WITH THE HOP LOUSE IN OREGON AND WASHINGTON. In 



Insect Life, v. 6, no. i, p. 12-17. 

 Page 16: Quassia and soap. 



(21) Lindsay, John. 



1794. AN ACCOUNT OF THE QUASSIA POLYGAMA, OR BITTER- WOOD OP JAMAICA. 



In Trans. Pv.oy. Soc. Edinb., v. 3, pt. 8, p. 205-214, pL 6. 

 Pages 205-210: Quassia. 



(22) McIndoo, N. E. 



1916. EFFECTS OP NICOTINE AS AN INSECTICIDE. In Jour. Agr. Researcli, v. 7, 

 no. 3, p. 89-122, 3 pL 



(23) Massute, Friedricti. 



1890. beitrage zur kenntnis der chemischen eestandteile von quassia 

 amara l. und picraena Excelsa linds. In Arch. Pharm., Bd. 228, 

 Heft 4, p. 147-17 1. 

 Pages 160-163: Quassia. 



(24) Merck, E. 



1895. QUASSOL. In Pharm. Joiir., s. 3, v. 25, p. 834. 



(25) MORIN, M. 



1822. recherches analytiques sur l'ecorce de simarouba (quassia 

 siMARUBA DE UNN^.). In Jour. Pharm., s. 2, t. 8, p. 57-61. 



(26) Oliveri, v. 



1887. RICERCHE SLTvLA COSTITUZIONE DELLA QUASSINA. In Gaz, Cbim. ItaL, 



V. 17, p. 570-577. 



(27) 



1888. RICERCHE SULIvA COSTITUZIONE DELLA QUASSINA COMPOSTO COLLA 



FENILIDRAZINA. In Gaz. Chim. ItaL, v. 18, p. 169-170. 

 (28) , and Denaro, A. 



1884. ESTRAZIONE DELLA QUASSINA E STUDII SULLA COSTITUZIONE. In Gaz. 



Chim. ItaL, v. 14, p. 1-9. 



(29) 



1885. RICERCHE SULLA QUASSINA 2^ MEMORIA. In Gaz. Chim. ItaL, V. 15, 



p. 6-9. 



(30) Ormerod, Eleanor A. 



1885. HOP APHIS, AND DAMSON-HOP APHIS (pHORODON) HUMULI, SCHRANK; 

 AND APHIS (pHORODON) HUMULI, VAR. MAHALEB, FONSC. In Rpt. 



Observ. Injur. Insects, 8, 1884, p. 43-56. 

 Pages 54-55: Quassia. 



(31) Paarmann, p. M. 



1779. examEn ligni QUASSIA. In Wittwer, T. L. Delectus Dissertationum 

 Medicarum Argentoratensium, v. 3, p. 35-66. Norimbergae. 



(32) Parker, W. B. 



1913. THE HOP AHis IN THE PACIFIC REGION. U. S. Dcpt. Agr. Bur. Ent. Bui. 



Ill, 43 p., 8 fig., 10 pi. 

 Pages 28-30: Quassia. 



(33) 



1914. QUASSiiN AS A CONTACT INSECTICIDE. U. S. Dcpt. Agr. BuT. Ent. Bui. 



165, 8 p., I fig. 



(34) Pfafp, C. H. 



1811. system der materia medica. v. 2. Leipzig. 



Pages 14-25: Quassienholz und Quassienrinde, Surinamsches Bitterholz, lignum et cortex 

 Quassiae. 



(35) Piper, C. V. 



1902. ORCHARD ENEMIES IN THE PACIFIC NORTHWEST. U. S. Dept. Agr. Farmers ' 

 Bui. 153, 39 p., I fig. 

 Pages 19-20: Whale-oil soap and quassia. 



