430 CATALOGUE OF SCIENTIFIC PERIODICALS. 



3479. OoLOGiST (The). A monthly journal devoted to the study of 



birds and their eggs. S. L. Willard, editor, [later, with Jos. M. 

 Wade]. 4 vols., 8vo. Utica, N. Y., 1875-78. 

 CJ. Ornithologist and Oologist. 



3480. Operator (The) [later,] and Electrical World. A journal 



of scientific and practical telegraphy [later, a journal of tele- 

 graphic, telephonic, and electrical science]. Edited by W. J. 

 Johnston. 13 vols., 4to. New, York, 1874-'82+ 



3481. Opinion (L') sericicole. Organe des interets agricoles et seri- 



cicoles de la France et de I'etranger. 1 vol., fol. Montpellier, 

 1863, '64. 



3482. Opmerker (De). Weekblad voor architecten, ingenieurs, fabri- 



kanten en aannemers van openbare werken. 3 vols., fol. Arn- 

 hem, 1866-68. 



Oppermann, C. a. See Annales (Nouvelles) d'agriculture ; also Anna- 

 les (Nouvelles) de la construction ; also Portefeuille economique. 



Oppler, Edwin. See Kunst (Die) im Gewerbe. 



3483. Opuscoli astronomici. 8 vols., 4to. Roma, 1803-'24. 



3484. Opuscoli matematici e fisici di diversi autori. 2 vols., 4to. 



Milano, 1832-'34. 



Opuscoli scelti sulle scienze e sulle arti. See Scelta d'opuscoli 

 interessanti. 



3485. Opuscoli scientifici d'una societa di professori della 



pontifical universita di Bologna. — vols., 4to. Bologna, 

 1817-'25. 



3486. Opuscula omnia actis eruditorum LiPsiiE inserta quse ad 



universam mathematicam, physicam, medicinam, anatomiam, 

 chirurgiam et philologiain pertinent. 1684-1740. 7 vols., 4to. 

 Venezia, 1740-46. 



Cf. Actorum eruditorum synopsis. 



Opwyrda, R. J. See Toegepaste scheikunde ; also Pharmaceutisch 

 wet'liblad. 



3487. Oregon and Washington Farmer. Edited by S. A. Clark. 



4to. Portland, 1882+ 



O'Heilly, R., and Barrier de ViiMARS. See Annales des arts ot ma- 

 nufactures. 



Orelly's neue Entdeckungen in der Chemie. See Annalcn der 

 Geworbkunde. 



3488. Organ fuk den Oel- und Fetthandel. Die Seifen- und 



Lichte-Fabrilvution, die Oel-, Harz- und Theerpi-oduction-In- 



