36 Joint Bulletin 8 



"Natural Enemies of Birds"; "The Domestic Cat"; also the periodicals 

 The Auk, Bird-Lore, magazines of bird life. 



Get lists of publications of the State of Massachusetts, New York, 

 and the United States Department of Agriculture. Some are for sale 

 at a nominal price; others free. They contain valuable information 

 regarding birds, their food, etc. Several bulletins are on "Nesting 

 Boxes," "How to Attract Birds," "Plants and Shrubs to Attract Birds," 

 etc. Many are on plants. 



F. Schuyler Mathews has fine books: "Field Book of Wild 

 Flowers," "Field Book of Birds and Their Music," "Field Book of 

 Trees and Shrubs." 



Mrs. Parsons has a good book on "How to Know the Ferns." 

 Harriet Keeler has a good book on trees and one on shrubs. 



Frank Chapman's "Bird Life" (for beginners); "What Bird is 

 That?"; "Handbook of Birds" and "Warblers of North America," for 

 more advanced students. 



"Wild Flowers of New York," House; "Birds of New York," Eaton; 

 Gibson's "Mushrooms"; Atkinson's "Mushrooms." 



INTERESTING PLANTS AT SWANTON 



Clarence H. Knowlton 



On the east side of the main road leading from St. Albans to 

 Swanton are some very interesting ledges of red rock. According to 

 the geologists (Sixth Annual Report of Vermont State Geologist, 1907- 

 08) these are Ordovician rocks of dolomite, or magnesian limestone. 

 When polished they are the mottled red "marble" familiar to most 

 people in the state. These ledges are covered with arbor-vitae trees, 

 with Ostrya virginica, occasional slippery elms and at one place there 

 are one or more trees of Quercus macrocarpa. The general appearance 

 of the region is rather fascinating, and I was first led to stop there 10 

 years ago, when I spied my first specimens of Trillium grandiHorum at 

 the foot of the ledges in a beautiful glade. Since then I have paused 

 here nearly every time I have passed in spring or summer, and last 

 May I took a whole afternoon for my researches. 



The woods at the base of the rocks contain some very interesting 

 carices. The most conspicuous of these is Carex laxiflora, var. lati- 

 folia, a most striking calciphile sedge, with very broad pale green 



