secretary's report. 
L'Academie Royale Suedoise des Sciences, Stockholm. 
Societe Imperiale Mineralogique de St. Petersburg. 
Societe Imperiale des Naturalistes, Moscow. 
Comite Geologique de la Russie, St. Petersburg. 
Instituto Geologico de Mexico. 
Sociedad Cientifica "Antonio Alzate," Mexico City. 
Australian Museum, Sydney. 
Australian Association for the Advancement of Science, Sydney. 
Natural History Society of New Brunswick. 
L'Academie Royale des Sciences et des Lettres de Danemark, Copen- 
hague. 
Kaiserliche Leopold-Carol. Deutsche Akademie der Naturforscher, 
Halle-a-Saale. 
Geological Institution, Royal University Library, Upsala. 
Imperial University of Tokyo, Japan. 
