MICROSCOPIC F0R31S IN FKE8H WATER. 



By J. McG. Baxter, M. D. 

 NDER the above title a list of iovma is given in Bulletin 



k.®)l ^*-*- '^ *'^' ^^^^^ Association. They were those which ii}) to 

 that time, 1903, had Ijeen discovered in the vicinity of 

 Chatham, N. B., by the writer. 



The following supplementary forms have since been found here: 



DESMIDS. 



Cosmariu7ii. conspersum. 



" punctulatum. 



Desmidium. aptogoninm. 



Docidium . truncat am . 



Euastrum. ampullaccnrra 



'• humerosum. 



Micrasterias. Americana var recta 



" denticulata. 



" mamillata. 



' * I)apillif era. 



" Rotatara var simplex 



" Trmicata. 



Peniuni margaritaceum. 



Staurastrum. muticum var minus 



Tetmorus. l)rebisonii 



Xanthidium. antilopaeum. 



•' cristatum. 



DIATOMS. 



Amphipleura pellucida. 



Asterionella formosa var Ralfsii minor 



Cocconema cistula (Smith.) 



Cymbella . stomatophora. 



Diatonia. elongatuni. 



Eunotia. pectinaiis. 



Epithemia. liyndmanii. 



tnrgida, 

 Gonophonema. gemiiiatum. 



Navicula. acrosi^hseria. 



" dariana. 



" divergens. 



" cardinalis. 



gigas. 



" hemiptei'a. 



