INSTITUTIONS EXCHANGING PUBLICATIONS. 
107 
MEXICO. 
\ 
Mexico. — La Sociedad Mexicana de Geografia y Estadistica. 
Instituto Geologico de Mexico. 
Observatorio Astronomico Nacional de Tacubaya. 
Sociedad Cierutifica “Antonio Alzate.” 
PORTUGAL. 
Lisboa. — Beal Observatorio de Lisboa. 
JAPAN. 
Tokyo. — Mathematical-Physical Society, Imperial University of Tokyo. 
RUSSIA. 
Helsingfors. — Finska Vetenscaps-Societeten. 
Kazan. — Societe Physico-Maltheinatique de Kazan. 
St. Petersburg. — L’Academie Imperiale des Sciences. 
SCOTLAND. 
Edinburgh. — The Royal Society of Edinburgh. 
Glasgow. — The Philosophical Society of Glasgow. 
SOUTH AFRICA. 
Cape Town. — The Philosophical Society of South Africa. 
SWEDEN. 
Gothenbourg. — Goteborgs Koengl-Vetenscaps och Vitterhets-Samhalles. 
Stockholm. — Koengl- V etenscaps Akademiens. 
Upsala. — The Geological Institution of Upsala. 
SWITZERLAND. 
Berne. — Hie Katurforschende Gesellschaft. 
Zurich. — Die Uaturforschende Gesellschaft. 
