THE BOTANISTS OF PHILADELPHIA. 235 



of John Cassin, one of the leading ornithologists of the 

 world. It was the germ of her later and improved charts. 

 In 1876 she exhibited in the Centennial Exposition a wax 

 model along with her Chart of the Animal Kingdom. Here 

 Professor Huxley and other prominent naturalists found 

 opportunity of examining her productions, and they were 

 highly commended. Fortified by the encouragement of the 

 best zoologists of England and America, her confidence was 

 now assured, and she was ready to apply the same prin- 

 ciples to the construction of a " Chart of the Vegetable 

 Kingdom," which was completed in 1885. In 1870 Miss 

 Lewis was elected a member of the Academy of Natural 

 Sciences of Philadelphia. She is at present honorary 

 member of the Rochester Academy of Sciences, Rochester, 

 New York ; of the Philosophical Society of West Chester, 

 Chester County, Pennsylvania ; of the New Century Club of 

 Philadelphia ; of the Women's Anthropological Society of 

 America, Washington, District of Columbia; and recently has 

 been elected a life member of the Delaware County Institute 

 of Science, in Media, where she now resides. Miss Lewis 

 continues to lead a busy life, and as Secretary of the 

 Delaware County Forestry Association does much quiet 

 work for the cause of forestry. Under her supervision 

 there is now being issued a series of Tree Charts, for use 

 of public schools. The following have been so far printed 

 and issued : 



Part I.—'' The Oaks," forty-two pieces. 



No. 1. — " Biennial Fruited Oaks, Black Oak and Allies." 

 No. 2.—" Annual Fruited Oaks, White Oak and Allies." 

 No. 3. — "Southern, Pacific, Hardy, Foreign, and examples of 

 extinct Oaks." 



