three times, and receiving a "University Scholarship" at gradua- 

 tion. He then took post-graduate work in chemistry, mineral- 

 ogy, and botany, devoting himself more especially to chemistry, 

 in which two years later he became lecture assistant at the Uni- 

 versity. He received the degree of Ph. D. in 1899. In 1900 he 

 went to Connecticut and acted as professor of chemistry and 

 physics in the Agricultural College of that State for one year. 

 He then returned to Baltimore, and has since been assistant in 

 chemistry at Johns Hopkins, and assistant editor of the Ameri- 

 can Chemical Journal. He is a member of the American and 

 German Chemical Societies, and of the American Association 

 for the Advancement of Science. 



What Dr. Waters has done in botany, however, will be of 

 greater interest to most of our readers. In 1893 he was one of 

 the charter members of the Linnsean Fern Chapter. In 1895 he 

 was elected secretary of the Chapter, in which capacity he served 

 during the following year. In 1896 he was chosen president of 

 the Chapter and retained that office during 1897-8. He is on 

 the executive committee of the Botany Club of Baltimore, and 

 a member of the Naturalists' Field Club of that city. He is 

 one of the managers of the Wild Flower Preservation Society 

 of America, and the president of the Baltimore Chapter. He is 

 also a member of the Botanical Club of the A. A. A. S., and 

 of the Biological Society of Washington. These facts show that 

 he is deeply interested in botany, while his numerous articles in 

 the Fern Bulletin show that he is especially attracted to the 

 ferns, and is a close observer of their growth and structure. 

 No one but a very patient and painstaking student could have 

 elaborated the "Analytical Key for the Ferns of the Northeastern 

 States, Based on the Stipes," which he published last summer. 

 He has also made some photographs of fern structure, greatly 

 enlarged, which show the indusia, buds, and other parts as they 

 actually are, and not as they may appear to the imagination of 

 an artist. His book, "Ferns," which will soon appear, will con- 

 tain these and the "key" as special features. 



For a youg man Dr. Waters has certainly accomplished a 

 deal of work, and made an honorable name for himself both in 

 chemistry and botany, and his career still lies before him. — 

 B. D. Gilbert. 



