Kditorial Statkmkrt. 
We desire to take this opportunity to extend our thanks to our 
numerous friends who have contributed to the museum of the Associ- 
ation and to its library; to those also who have contributed largely to 
the support of this publication ; to Mr. E. S. Clark for a fine collection 
of plants and sea algae from Colorado and the Pacific coasts respect- 
ively ; to Mr. J. Sanford for a collection of fishes from Lake Erie ; to 
the University of Heidelburg, O., for a fine set of geological casts 
for the section of geology, and to numerous scientific societies and 
institutions, which, by their generous exchanges, have increased the 
value of our library. 
It has been found necessary to postpone the publication of one of 
the articles intended for this volume until the close of the year, so 
that more time might be had for work, therefore this volume will 
appear in two parts. 
