II 



about i6 mm. long; expanded portk^n of the lamina about 8 

 mm. long and 3.2 wide. The sporophyll not apicujate. 



Wind River or Bridger formation, Eocene Tertiary; Tipperary, 

 Wyoming. The plants were possil)ly immature, but the long 

 lamina accords with the mature condition of such species as the 

 Asiatic 0. pendulum, although that does not present the outline 

 of a spear-head. The generic reference is, at any rate, fjuite 

 satisfactory. 



T. D. A. COCKERELL. 



BOOK REVIEW 



The New York Walk Book* while meant for hikers should be 

 of interest to all botanists in the neighborhood of New York. In 

 the introduction the author states that "if this book seems to 

 imply that scenery and climbing and rocks and mileage are the 

 main goal for walkers, it is not for any lack of appreciation of the 

 lure and variety of rewards offered by hunts for trees and all 

 growing things, birds and all moving things, snow tracks or 

 winter buds." The book divides the region within some fifty 

 miles of the city into fifteen districts, briefly describes each as to 

 the general topography and other features, and outlines the best 

 walks that can be taken. These walks are described in detail, 

 beginning with the best ways of reaching the starting points, 

 with the time and cost by trolley or train, the character of the 

 walk— level or hilly, rough or smooth, dry or swampy, the trails 

 and paths to follow, special features of interest, the location of 

 springs, etc. The directions are so detailed and clear tliat it is 

 hard to see how anyone at all used to the outdoors can lose the 

 trail. Moreover, the directions have such suggestion of wild 

 places, fine views, the possibilities of finding rare plants and the 

 joy of the great outdoors that to read tliem is to be filled with a 

 great desire to take the trail, " to keep to the ridge to a fine spring 

 under an ash tree, to follow along the ridge tlirough the briar 

 patch and the wild apple orchard, up tlie nose of the hill past a 

 fine boulder." The botanist certainly will find much of interest 



* New York Walk Book, Raymond Torre}-, Frank Place and Robert L. 

 Dickinson, The American Geographical Society, Broadway at 156th Street, 

 New York. Pocket Edition, thin paper and flexible covers, $2.00; Special 

 Library Edition, heavier paper and fifteen half tones, $4.00. 



