Additions to the Library. Xvil 
Wien.—K. k. geologische Reichsanstalt. 
Jahrbuch. Bd. XXXV, XXXVI. 1, 1885-86. 8°. 
Verhandlungen. Jahrg. 1885, 1886 i-iv. 8°. 
Wien.—K. k. Naturhistorisches Hofmuseum. 
Annalen. Bd. I. 1, 2, 4, 1886. 8°. 
——K. k. zoologisch-botanische Gesellschaft. 
Verhandlungen. Bd. XXXIV-XXXVI, 1884-86. 8°. 
Oesterreichische Gesellschaft fiir, Meteorologie. 
Zeitschrift. Bd. XX. 7-12, 1885. 8°. 
WIESBADEN.—WNassauischer Verein fiir Naturkunde. 
Jahrbiicher. Jahrg. XX XIX, 1886. 8°. 
Witrzspure.—Physikalisch-medicinische Gesellschaft. 
Sitzungsberichte. Jahrg. 1885. 8°. 
Ziricu.—Naturforschende Gesellschaft. 
Vierteljahrsschrift. Jahrg. XXVI-XXIX, 1881-84. 8°. 
Barus, (Carl) and Strouhal, (Vincent). The eleetrical and magnetic properties of 
the iron carburets. Washington, 1885. 8°. From the Authors. 
Harden, William. A suggestion as to the origin of the plan of Savannah. 
Savannah. 1885. 8°. From the Author. 
Hirn, G. A. Notice sur les lois du frottement. Paris, 1884. 4°. 
From the Author. 
Klossovsky, A. Les orages au sud de la Russie. Odessa, 1886. 8°. 
Les orages en Russie. Odessa, 1886. 8°. From the Author. 
Lewis, H. Carvill. Marginal kames. Philadelphia, 1886. 8°. 
A great trap dyke across Southeastern Pennsylvania. Philadelphia, 1885. 
8°, From the Author. 
MacLeod, Jules. La structure des trachées et la circulation péritrachéenne. 
Bruxelles, 1880. 8°. Prom the Author. 
Pickering, Edward ‘©. An investigation in stellar photography conducted at the 
Harvard College Observatory. Camb. 1886. 4°. From the Author. 
Russell, H. C. Local variations and vibrations of the earth’s surface. Sydney, 
1885. 8°. 
Annual address, Royal Society of New South Wales. Sydney, 1885. 8°. 
. From the Author. 
Searle, Arthur. The apparent position of the zodiacal light. Boston. 4°. 
From the Author. 
