WILLIAM BULLOCK CLAEK. 665 



1901, 1902, 1901, 1907, and 1915. These exhibits attracted much 

 attention at the time and received a hirge number of conspicuous 

 awards. The exhibits have been permanently installed as a State 

 mineral exhibit at the statehouse in Annapolis. 



When President Roosevelt invited the governors of the States to 

 a conference on conservation at the White House in May, 1908, it 

 was arranged that each governor should appoint three advisers to 

 accompan}' him. Professor Clark was one of the Maryland advisers 

 and took part in the conference. 



After the great Baltimore fire in 1904 the mayor of the city ap- 

 pointed Professor Clark a member of an emergency committee to 

 prepare plans for the rehabilitation of the burnt district and for 

 several months he served as vice chairman of the important sub- 

 committee on streets, parks, and docks, whose plans resulted in the 

 great changes subsequently carried out. The following year he was 

 appointed by the mayor a member of a committee to devise a plan 

 for a sewerage system for the city which has resulted in the build- 

 ing of the present modern system of sewers. Again in 1909 the 

 maj^or also appointed him a member of a committee for devising a 

 plan for the development of a civic center for Baltimore. 



Since 1901 Professor Clark had been president of the Henry Wat- 

 son Children's Aid Society of Baltimore and was a delegate to the 

 White House conference called by President Eoosevelt in Februaiy, 

 1909, to consider the subject of the dependent child. He was also a 

 member of the executive committee of the State tuberculosis aasocia- 

 tion and a vice president and chairman of the executive committee 

 of the federated charities of Baltimore. 



Numerous scientific societies elected him to membership, among 

 them the National Academy of Sciences, of which he was chairman 

 of the geological section, the American Philosophical Society, 

 the Philadelphia Academy of Natural Sciences, the American 

 Academy of Arts and Sciences, the Deutsche Geologische Gesell- 

 schaft, the Washington Academy of Sciences, Palaontologische 

 Gesellschaft, and the American Association for the Advancement of 

 Science. He was councilor and treasurer of the Geological Society 

 of America at the time of his death. In 1904 he was elected a for- 

 eign correspondent of the Geological Society of London. He was 

 also president of the Association of State Geologists. Amherst con- 

 ferred on him the degree of LL. D. in 1908. He had numerous offers 

 from other institutions, perhaps the most important being the pro- 

 fessorship and head of the department of geology at Harvard Uni- 

 versity, but all of these were refused, and his devotion to Hopkins 

 and the ideals for which it stood was unswerving. 



At the time of the International Geological Congress in St. Peters- 

 burg in 1897 Professor Clark was an official delegate from the 



