NATURAL SCIENCES OF PHILADELPHIA. 
823 
1901.] 
*Revue critique de Paleozoologie. Paris. 
*Revue gen^rale de Botanique. Paris. 
* Revue generate des Sciences. Paris. 
Revue mycologique. Toulouse. 
Revue des Sciences naturelles de l’Ouest. Paris. 
*Revue scientifique. Paris. 
*Rivista di Mineralogia e Cristallografia italiana. Padova. 
Rivista di Patologia vegetale. Avellino. 
Rochester Academy of Sciences. Rochester. 
Proceedings. 
Roemer Museum. Hildesheim. 
Mittheilungen. 
Rovartani Lapok. Budapest (E. S.). 
Royal Gardens. Kew. 
Bulletin. 
Royal Society. London. 
List. 
Proceedings. 
Record (The). 
Reports to the Malaria Committee. 
Transactions. 
Yearbook. 
Royal Society of Canada. 
Proceedings and Transactions. 
Royal Society of Edinburgh. 
Proceedings. 
Transactions. 
Royal Society of New South Wales. Sydney. 
Journal and Proceedings. 
Royal Society of Queensland. Brisbane. 
Proceedings. 
Royal Society of South Australia. Adelaide. 
Transactions. 
Royal Society of Tasmania. Hobarton. 
Proceedings. 
Royal Society of Victoria. Melbourne. 
Proceedings. 
Transactions. 
Russisch-kaiserliche mineralogische Gesellschaft. St. Petersburg. 
Materialien zur Geologie Russlands. 
Verhandlungen. 
Imp. russkoye geografitcheskoye Obshtchestvo. [Imperial Russian Geo¬ 
graphical Society.] St. Petersbourg. 
Izviestiya (Bulletin). 
Ottchet (Report). 
K. sachsische Gesellschaft der Wissenschaften. Leipzig. 
Abhandlungen, math-phys. Classe. 
Berichte. 
