CONTENTS. 
rAWJ!,. 
On some Analogies between the Equations of Elasticity 
and Electro-Magnetism, by John E. Davies........ 3 
Notes on a Trip to the Lipari Islands in 1889, by Wi, H. 
Hobbs. (With Plate I).. ... 21 
Some Suggestions Concerning Methods of Psychological 
Study, by J. J. Blaisdell....... 33 
On the Flora of Madison and Vicinity, a Preliminary 
Paper on the Flora of Dane County, Wisconsin, by * 
L. S. Cheney and R. H. True. (With Plate II)... 45 
The Direction of Social Reform, by David Kinley. ..... 137 
A Supplementary List of Parasitic Fungi of Wisconsin, 
by J. J. Davis......153 
Cyclopidae and Calanidae of Central Wisconsin, by C. 
Dwight Marsh. (With Plates ILL-VI). 189 
The Progress of G-eological Surveysdn the State of Wis¬ 
consin—A Review and Bibliography, by Wm. P. 
Blake ................... .... ...... .... .. .. .. 225 
A Contribution to the Flora of the Lake Superior Region, 
by L. S. Cheney... .. 233 
In the second part of volume IX, which will be issued about Christmas, will be included 
the proceedings of the Ripon field meeting and the 23d annual meeting. In an appendix 
will be printed a catalog of the library. Volume title page and index will also be in¬ 
cluded. 
