404 



OTTO F. KAMPMEIER 



of the microscope, and the wax models made after a slight modi- 

 fication of Born's method. In this way the regions of immediate 

 interest in nine series were reproduced at a magnification of 100 

 diameters, excepting series 69 which was magnified to 50 diameters. 

 Besides these wax-models, a number of graphic reconstructions 



