MacKay, A. H.(Alexander Howard),1848-1929Nova Scotian Institute of Science2010-03-042010-03-041908MacKay, A. H.(1908). Water-rolled weed-balls. Proceedings and Transactions of the Nova Scotian Institute of Science, 11(4), 667-670.http://hdl.handle.net/10222/12593Read May 21st 1906, ill. b&wenNova ScotiaAquatic weedsBotanyText