NOTES AND MEMORANDA. 299 



of Upsala, and Herr Otto Nowstedt, of Lund, Sweden, an- 

 nounce the publication of a series of prepared algse, chiefly 

 freshwater, under the title " Algae aquse dulcis exsiccatse, 

 prsecipue Scandinavicae, adjectis algis marinis chlorophyllaceis 

 et phycodiromaceis," in fasciculi (of imp. 8vo), each con- 

 taining fifty numbers. Of Coleochseteae, CEdogoniese, Meso- 

 carpese, Zygnemeae, &c., only fertile examples will be 

 included. The new species will have accompanying dia- 

 gnoses in Latin. Each fasciculus will contain about sixty 

 species. The price of each fasciculus is announced at 17s., 

 carriage not included. Orders may be sent to Dr, Wittroch 

 or Herr Nordstedt as above. 



