296 " MINNESOTA BOTANICAL STUDIES. 



The list has been compiled for the most part from the origi- 

 nal sources, but some titles have been admitted on the authority 

 of such works as the Royal Society Catalogue, Botanis- 

 CHES Centralblatt, Botanischer Jahresbericht, Botan- 

 ISCHE Zeitung, and Botanische Jahrbuecher. The list is 

 not put forward as a complete one, but is hoped to be accurate 

 as far as it goes. Later, additions may be made. 



The titles have been arranged in chronological order and the 

 "Rules for Citation" of the Madison Botanical Congress have 

 been kept in mind. 



The following libraries have been of assistance: The botan- 

 ical, zoological, geological and general' libraries of the 

 University of Minnesota; the libraries of the State Geological 

 Survey, Hamline University and the State Board of Health; the 

 private libraries of Professor N. H. Winchell of the University 

 of Minnesota, and Dr. H. L. Osborn of Hamline University. 



I take pleasure in thanking the following gentlemen for the 

 great kindness they have in all cases shown me while engaged 

 in this work : Professor Conway MacMillan, Professor N. H. 

 Winchell, Dr. H. L. Osborn, Dr. U. S. Grant, Professor C. W. 

 Hall, Professor H. P. Nachtrieb, Mr. C. P. Berkey and Mr. A. 

 H. Elftman. 



1. Acheson, (}. Biological study of the Tap-water in the 

 School of Practical Science, Toronto. (1883.) Proc. Can. Inst. 

 1 :413. 1884. 



2. Adams, J. M. Motion of Diatoms. Am. Mo. Mic. Jour. 

 4:59. Mrl883. 



3. Adau, H. P. Extract from "Le Microscope." — (Am. Mo. 

 Mic. Jour. 2 :10, 1 1. Jal881. ) 



4. Agardh, C. A. Systema Algarum. xi— xxxviii. 1-309. 

 1824. 



Several species of algae from "North America are included. 

 5—6. Agardh, J. G. In Historiam Algarum Symbolae. Lin- 

 naea. 15:1-50. 443-457. 1841. 



In the first paper are included 11 species, of which 10 are new to 

 science, from different parts of North and South America. In the 

 second paper Endocladia vernicata is given as a new species from 

 Brazil. 



"• • Nya Alger ^fran Mexico. Oefvers. Kongl. Vet. 



Akad. Foerhandl. 4 :5-17. 1847. 



From Mexico and South America are given 25 species, with 4 new 

 genera including 17 additional species. 



