102 THE SMITHSONIAN" INSTITUTION. 



that resemble the so-called Fraunhofer lines in the upper spectrum. 

 The study has been especiallj^ directed to that region of the spectrum 

 Avhich includes the greater portion of all those energies of the sun 

 which alfects, through its heat, the climate and the crop. Its present 

 director is C. G. Abbot. 



NATIONAL ZOOLOGICAL PARK, 



The National Zoological Park was establisheu by Congress in 1890 

 for the advancement of science and the instruction and recreation of 

 the people, and incidentally to secure the preservation of such Amer- 

 ican animals as were upon the verge of extinction. The park is sit- 

 uated on Rock Creek, 2 miles north of the center of Washington, and 

 has an area of 167 acres. It is amply supplied wdth water, and its 

 surface is of a varied and picturesque character. The collections 

 comprise about 1,100 animals. The park is in charge of a su2)erin- 

 tendent, Frank Baker. 



