124 THE AMERICAN MUSEUM JOURNAL 



Aside from scientific worth and attainments, Dr. Jones had a char- 

 acter and personaHty that endeared him to many in all walks of life. 

 He was unassuming and modest, yet withal sincere and governed by a 

 high sense of honor and duty. He had a rare sense of balance and 

 proportion that enabled him to meet with sympathy every upright man 

 on his own horizon. Perhaps this is why he had so many friends in such 

 varied walks of life. 



Clark Wissler. 



THE EARTH AND THE SUN. 



AN exhibit making clear the cause of day and night, of the differ- 

 ences of local time and of the succession of the seasons is shown 

 in the accompanying photograph. A four-foot globe, standing 

 for the earth, is regulated to rotate on its axis and to revolve in its orbit 

 around the sun. The circular railing inclosing the exhibit and con- 

 spicuously marked with the months and days of the year indicates the 

 orbit; a strong beam from an electric stereopticon represents the light 

 and heat from the sun. 



When the visitor approaches this exhibit, he sees no motion except 

 the regular swinging of the pendulum of the clock-work that causes the 

 globe's rotation. A short period of watching, however, convinces him 

 that the globe is moving with the passage of the minutes to bring places 

 most directly in the rays of the sun into the full light of noon time, regions 

 west of these into morning hours, regions east toward the time for the 

 "setting of the sun." The shadow of a line (in front of the lens of the 

 stereopticon) is cast on the globe from pole to pole to mark the noon 

 hour for the different localities, as one after another, from east to west, 

 they reach and pass it; while the time for New York City is recorded 

 continually, as the fifteen-minute sub-divisions on the equator of the 

 globe approach and leave behind this same line shadow. 



The location of the earth in its orbit at any day of the year and the 

 inclination of the earth's axis are represented as they occur in the heavens. 

 This exhibit differs from that of the Solar System in the Foyer in that 

 little attention is given to proportional distances and dimensions. It is 

 located, at present, in the Central Hall of the Second Floor, awaiting the 

 construction of a Hall of Cosmology. 



