MacKay, A. H.(Alexander Howard),1848-1929Nova Scotian Institute of Natural Science2008-12-192008-12-191885MacKay, A. H. (1885). Notes on the fresh water sponges of Nova Scotia. Proceedings and Transactions of the Nova Scotian Institute of Natural Science, 6(3), 233-240.http://hdl.handle.net/10222/11418enlakesspongesNova ScotiaText