Memorial Address—Herman Frederick Lueders. 919 
1904, after much suffering, he succumbed, the immediate cause 
being tuberculosis. 
Ilis love for botany was no doubt inherited, as his father was 
keenly interested in the science and was a successful gardener. 
When Herman was still a child, he invested a part of his sav¬ 
ings in a copy of Gray’s “Manual,” and during the open sea¬ 
son, he spent every leisure hour in roaming over the hills and 
through the marshes in the neighborhood of his home, and on 
Sunday he would make long excursions up and down the river 
in search of new specimens. His collection finally numbered 
4,000 native species. 
It was while doing special work at Harvard that his atten¬ 
tion was directed to the study of caoutchouc. Some men of 
wealth who were interested in the rubber industry and who 
hoped to profit by some new discoveries pertaining to the struc¬ 
ture of, and impurities in, commercial rubber, arranged with 
the university to pursue these investigations and founded a 
fellowship for this purpose. It was offered to Mr. Lueders 
and he accepted. It was decided that, inasmuch as only dried 
specimens were available for study in the laboratory, this re¬ 
search should be carried on in the tropics, in the home of the 
rubber plant. The botanical gardens at Buitenzorg, Java, 
were selected as the most favorable location, and Mr. Lueders 
began his preparations for the journey. It was a fearful blow 
to him to be taken very ill at this time and to be compelled to 
give up this interesting project. The opportunity was held 
open to him for a year, but as his physical condition did not 
materially improve, he was finally forced to abandon the idea. 
Among his published contributions to science were the fol¬ 
lowing : 
Concerning the structure of caoutchouc: American Journal 
of Science, vol. 46. August 1893. 
The vegetation of the town Prairie du Sac. Transactions 
of the Wisconsin Academy of Sciences, Arts, and Letters, vol. 
10, p. 510. 1895. 
Ploral structure of some Gramineae: Transactions of the 
Wisconsin Academy of Sciences, Arts , and Letters, vol. 11, p. 
109. 1896. 
57—S. & A. 
