ir Table of Contents. 



Paper S, I. The water of artesian wells; its quality and the possibil- 

 ity of its becoming a source of supply in Minnesota, [abstract], 

 by C. N. Hewitt, ...... 125 



II. The geological conditions which control artesian well- 



boring in southeastern Minnesota, with Plate II, by C. W. Hall, 128 



Paper T, On the reproduction of lost or mutilated limbs of insects, 



by O, W. Oestlund, --.._. I43 



Paper U, Some notes upon the more recent fossil flora of North Da- 

 kota and an inquiry into the causes that have led to the devel- 

 opment of the treeless areas of the northwest, by John B. 

 Leibekg, ........ 145 



Paper F, Description of maps showing the climate, geography and 



geology of Minnesota, by Warren Upham, ... 151 



Paper W, An account of the tornado which visited Saint Cloud, 



Minnesota, April 14, 1886, by C. \V. Hall, - - - 155 



BULLETIN 2. 



Proceedings of the Minnesota Academy of Natural Sciences 1887- 



1889, 161 



The Minnesota Academy of Natural Sciences in the Public Library 



Building, 187 



Paper X, Notes on the arrival and nesting of birds in the vicinity of 



Minneapolis for the spring of 1887, Franklin Benner, . 187 



Paper Y, The field of geology and its promise for the future, W J 



McGee, 191 



Paper Z, A check-list of the paleozoic fossils of Wisconsin, Minne- 

 sota, Iowa, Dakota, and Nebraska, Bruno Bierbauer, - 206 



Paper AA, The deep well at Minneopa, C. W. Hall, - - 248 



Paper BB, Notes of a geological excursion into central Wisconsin, 



with Plate III, C. W. Hall, 251 



Paper CC, What ought the people of a community to do to help their 

 local board of health, by Charles N. Hewitt, M. D., Secretary 

 of the State Board of Health of Minnesota, etc., - - 268 



Paper DD, Analyses of water used in a boiler employed for heating a 



public building in St. Peter, Minn., by J. A. Dodge, - 272 



Paper EE, The Stillwater deepwell, by A. D. Meeds, - - 274 



Paper FF, The iron-bearing rocks of Minnesota, [abstract] by H. V. 



WiNCHELL, .--.-.. 277 



Paper GG, Cryptozoon Minnsotense in the Shakopee limestone at 



Northfield, Minnesota, L. W. Chaney, Jr., - - - 280 



Paper HH, A recent visit to Lake Itasca, by Warren Upham, - 284 



BULLETIN 3. 



Proceedings of the Minnesota Academy of Natural Sciences, 1890, 



1891, • - - 293 



Paleozoic fossils in the drift, F. W. Sardeso n, - - - 317 

 Fossils in the Saint Peter sandstone, F. W. Sardeson, - - 318 

 The Lower Silurian formations of Wiscon«>in and Minnesota com- 

 pared, F. W . Sardeson, - - - - - - 319 



