The twenty-second Arthur Lecture is delivered in the auditorium of the National Museum of Natural History on April 27, 1955, by Sir Harold Spencer Jones, Astronomer Royal of Great Britain on the ...

CC0 Usage Conditions ApplyClick for more information. The processing of this collection received Federal support from the Smithsonian Collections Care and Preservation Fund, administered by the ...

Smithsonian’s educational travel program was one of the first of its kind when it debuted nationally in 1970, and it quickly found an audience eager to explore places both familiar and far-flung—from ...