86 The Botanical Gazette. [February, — 
_ Tue Geological and Natural History Survey of Minnesota is orga — 
ized upon a very liberal basis, especially favoring exploration and 
publication. The Bulletins, issued from time to time, have contained — 
much valuable material. The state botanist, Professor Conway Ma 
Millan, now proposes to publish Bulletin no. 9 in parts, under the 
title, “Minnesota Botanical Studies,” until a volume is complet 
The first part (Jan. 16, 1894), contains the following papers: “ n the 
occurrence of sphagnum atolls in Central Minnesota,” by Conway — 
MacMillan, in which the structure and origin of these peculiar ann: 3 
lar structures are discussed; “Some extensions of plant ranges, ie 
E. P. Sheldon, in which a new Polygonum and a new Aster are de. 
scribed; “On the nomenclature of some N. Am. species of Astragalus, — 
by E. P. Sheldon, in which the recent American rules of nomencla- 
plates illustrate the new Polygonum, the new Aster, and the hal 
Cypripedium. 
