REPORT OF NATIONAL MUSEUM, 1923. 101 



was necessary to conduct extensive investigations in order to deter- 

 mine the best way to accurately portray all phases of this industry 

 in model form. 



Over against this type of investigation conducted during the year 

 was that of the research work conducted by the writer on the 

 problem of the economic utilization of coal. The work resolved 

 itself into an interpretation of the theory of combustion which would 

 be understood and could be applied by the smaller industrialist and 

 the householder; in other words, those unable to afford the services 

 of a combustion expert. The results of this work were published 

 during the year under the title, " Some Practical Aspects of Fuel 

 Economy." 



Mr. Samuel S. Wyer, associate in mineral technology, devoted 

 a considerable portion of his time during the year in applying the 

 division's method of study of mineral industries to the natural 

 resource industries of a single state. The division's work is national 

 in scope, and Mr. Wyer made a particular study of the mineral in- 

 dustries of the State of Pennsylvania for the specific use of the 

 graded schools of that state. All data which the division possessed 

 were used as far as possible. The results of the study were pub- 

 lished privately and distributed amongst the grade school teachers, 

 school superintendents and other educators, but particularly the 

 teachers in the seventh grade. The title given to this publication is, 

 " The Smithsonian Institution's Study of Natural Resources Ap- 

 plied to Pennsylvania's Resources." 



Mention was made in the last annual report of work being started 

 with the assistance of Mr. Wyer in the preparation of a model visual- 

 izing the manufactured gas industry. With this as a basis, Mr. 

 Wyer continued his investigations of the manufactured gas industry, 

 the results of which were published under the title, " Manufactured 

 Gas in the Home." 



For upwards of thirty years the division of mechanical tech- 

 nology has had on deposit a steam engine cylinder said to be a part 

 of the locomotive " Stourbridge Lion," the first locomotive put into 

 actual service on the Western Hemisphere, at Honesdale, Pa., in 1829. 

 During a visit to the division, W. J. Coughti-y, of the Delaware & 

 Hudson Railroad Company, Albany, N. Y., was shown this cylinder 

 and advanced the idea that the cylinder might be part of a locomo- 

 tive purchased by the Delaware & Hudson Company in England at 

 the same time that the company purchased the " Stourbridge Lion," 

 and which was received in this country prior to the receipt of the 

 " Stourbridge Lion" but was never tested. The locomotive referred 

 to, called "America," was made by the locomotive builders, Robert 

 Stephenson & Company, Ltd., Darlington, England, so that corre- 

 spondence was immediately taken up with this firm with the result 

 that from the data still available as to the "America," it is now 



