THE WORLD'S COLUMBIAN EXPOSITION. 191 



Through the courtesy of Hon. W. M. Meredith, Chief of the Bureau 

 of Engraving and Printing, Washington, a supply of macerated green- 

 back pulp was obtained for the purpose of making casts of fishes. 



The Department of Agriculture assisted the Commission in its inves- 

 tigation of a fish disease, which proved very destructive during the 

 progress of the Exposition, by the detail of Br. Charles W. Stiles, who 

 made a study of the parasite and prepared a report upon its life-history 

 and the methods of its destruction. 



Through the intervention of the late Hon. F. B. Stockbridge the 

 Commissioner obtained permission from Mr. Howard Page, 26 Broad- 

 way, New York City, to use a sufficient number of tank cars belonging 

 to the Standard Oil Company to convey salt water from the North Car- 

 olina coast to Jackson Park, Chicago, to be used in maintaining marine 

 animals and plants in the aquarium. Free transportation for the salt 

 water was obtained from Eichmond, Va., to Chicago through the liber- 

 ality of Mr. M. E. In galls, president of the Chesapeake and Ohio and 

 the Cleveland, Cincinnati, Chicago and St. Louis railroads. 



One of the cars of the Commission was sent from Chicago to Wis- 

 consin for living specimens of muskellunge, black bass, and other fishes, 

 in which undertaking Mr. C. L. Eyder, agent of the Milwaukee, Lake 

 Shore and Western Eailroad at Milwaukee, furnished free transporta- 

 tion for the car and its attendants. He also provided the service of 

 Mr. J. B. Carlin, one of the conductors on the road, who was thoroughly 

 familiar with the region to be visited, as a guide and helper for the trip, 

 and he proved of great assistance on that occasion and subsequently. 



In the selection of available localities for collecting marine materials 

 along the southern coast, the advice of Dr. W. K. Brooks, of Johns 

 Hopkins University, Baltimore, was profitably followed by the Com- 

 mission. 



In the collection of live fish and other objects in North Carolina, the 

 agent of the Commission was assisted by Mr. George N. Ives and Mr. 

 William Arendell, of Morehead City, and Mr. W. S. Chadwick, of 

 Newbern. 



Mr. T. J. Griggs, fish commissioner of Iowa, cooperated with Dr. 

 Bartlett in securing specimens of black bass and other fish at Musca- 

 tine Slough during the entire course of the Exposition, as well as in 

 their transportation to the aquarium. 



To Mr. E. Ulrich, superintendent of the landscape gardening depart- 

 ment of the Columbian Exposition, the Commission is indebted for flow- 

 ering plants by means of which its space in the Government building 

 was beautified. 



A very useful device for recording the pressure of the water in the 

 main supplying the Government building was furnished by Bristol's 

 Manufacturing Company, of Waterbury, Conn. A pressure gauge was 

 set up in proximity to the water motors, enabling us to show upon dials 

 a constant record of the pressure. Thus, when it fell below a point to 

 which the pumps were adjusted, it was easy to ascertain where the 

 fault lay and to give the proper notice to the Exposition authorities. 



