Smithsonian Report, 1945. — Spear 



Plate 4 



1 Autoradiography of Two Mice Carrying subcutaneous Bilateral 

 lymphosarcomatous tumors. 



The animal shown on left was given strontium and thai show □ on the right radio phosphorus 5 days before 

 the photographs were made (18). The result shows the selective deposition of strontium in bone and 

 phosphorus in the cancel cells. < Reproduced by permission from the American Journal of Roentgenology.) 



/ 



2. Couch for Treating patients Alongside Cyclotron 2b (Table 1). 



Surrounding water tanks and wax blocks concealed behind white-enameled plywood. The appearance 

 of the apparatus is in striking contrast to that shown in figure 1 of plate 1. (From a photograph pro- 

 vided by Dr. P. C. Aebersold.) 



