NATURAL SCIENCES OF PHILADELPHIA. 
487 
1888 .] 
Zoological Society. Proceedings, 1888, 1-4. Transactions, VII, 7. 
• The Society. 
Zoologist, 132-143. I. V. Williamson Fund. 
London, Ca. The Canadian Entomologist, XIX, 12; XX, 1-11. The Editor. 
Louvain. . Universite Catholique. Annuaire, 52. The University. 
Liibeck. Naturhistorisches Museum. Jahresbericht, 1887. The Society. 
Liintberg. Naturwissenschaftlicher Verein. Jahresheft, I, II, IV—IX, XI, XII. 
The Society. 
Lund. University. Acta, 1865-72; XXIII. The University. 
Madrid. Real Academia de ciencias exactas, fisicas y naturales. Memorias, XXII, 
4; XXIII, 1. The Academy. 
Observatorio Resumen de las Observaciones, 1883. Observaciones Meteoro- 
logicas 1882-85. The Observatory. 
Sociedad Geografica. Boletin, XXIV, 1-3; XXV, 1, 2. The Society. 
Manchester. Geological Society. Transactions, XIX, 11-20. The Society. 
Literary and Philosophical Society. Proceedings, 25, 20. Memoirs, Ser VIII, 
X. The Society. 
Scientific Students Association. Annual Report, 1887. The Society. 
[Manhattan. Journal of Mycology, I, II, III, IV, 1-10. I. V. Williamson Fund. 
Marburg. Gesellschaft ziir Beforderung der gesammten Naturwissenschaften 
Sitzungsberichte, Jahrg. 1886,1887. Schriften, XII, 2. The Society. 
Marseille. Musee d’Histoire Naiurelle. Annales, Zoologie, II. The Director. 
Mendon, Ill. American Antiquarian, IX, 6; X, 1-6. The Editor. 
Metz. Academie. Memoires, 1883-84. The Society. 
Verein fur Erdkunde. Jahresbericht, 3er, 4er, 10er. The Society. 
Mexico. Museo Nacional. Anales, IV, 2. The Society. 
Observatorio Meteorologico—Magnetico Central de Mexico. Boletin Mensuel 
I, 6, 7 and Suppl. The Director. 
Sociedad cientifica “Antonio Alzate.” Memorias, 1-12 ; II, 1-3. 
The Society. 
Sociedad de Geografia Estadistica. Boletin, I, 1,2. The Society. 
Sociedad Mexicanade Historia Natural. La Naturaleza, I, 2, 3. The Society. 
Milano. L'Electricita, Anno VII, 36. The Editor. 
R. Istituto Lombardo di Scienze. Rendiconti, XVII, 18; XX, 17-19; XXI, 
1-16. The Society. 
Regio Istituto technico Superiore. Programma, 1887—88. The Society. 
Middelburg. Zeeuwsch Genootschap der Wetenschappen. Archief, VI, 3. 
Levensberichten van Zeeuwen, le Afl. The Society. 
Middletown Wesleyan University, Museum, 17th annual report. The Director. 
Milwaukee. Naturhistorischer Verein von Wisconsin. Proceedings, 1888, pp. 
141-190. The Society. 
Public Museum of the City of Milwaukee, 6th annual report. The Director. 
Minneapolis. The American Geologist, I, 1-6; II, 1-5. I. V. Williamson Fund. 
Minnesota Academy of Natural Sciences. Bulletin, II, 1; 1875; 1878-79. 
The Society. 
Modena. Societa dei Naturalisti. Atti, Ser. Ill, V. 3 pp. 49-128. The Society. 
Mons. Societe des Science, des Arts et des Lettres du Hainaut. Memoires, lOme. 
The Society. 
Montevideo. Observatorio meteorologico del Colegio Pio de Villa Colon. Bole¬ 
tin mensual, Ano I, 1—3. The Director. 
Montpellier. Academie des Sciences et Lettres. Memoires, Section des Sciences, 
XI, 1. The Society. 
Montreal. Canadian Record of Science, III, 1-4. The Editor. 
Moscow. Societe Imperiale des Naturalistes. Bulletin, 1887, No. 1-4, 2nd Ser. 
I, Beilage. XV, 5. Memoires, 2nd. Ser. I. The Society, 
hen. K. B. Akademie der Wissenschaften. Abhandlungen, mathem phy- 
sikal. Classe XV, 3 ; XVI, 1, 2. Sitzungsberichte, 1886, Nos. 1-3; 1887. 
No. 1. Inhaltverzeichniss, 1871-1885, 1887, 2, 3. Gedichtnissrede, Jos. 
von Fraunhofer } Carl Theodor v. Siebold. The Society. 
