via SMITHSONIAN MISCELLANEOUS COLLECTIONS 



X. (i) Tiipaia chrysogastcr, female, type. (2) Tn- 

 paia ferruginea, female, Tanjong Dungun, 



Tringanii 59 



XI. ( I ) Macacus nemestrinus, female, Tapanuli bay, 



Sumatra. {2) Macacus pagensi:,iem?i\e, \.y\)e. 61 

 XII. (i) Macacus nemestrinus, female, Tapanuli bay, 



Sumatra. {2) Macacus pagensis, i^va2L\e.,iypQ. 63 



XIII. (i) Macacus pagcnsis, female, type. (2) Maca- 



cus nemestrinus, female, Tapanuli bay, Suma- 

 tra 64 



XIV. Simias concolor, adult 66 



XV. Simias concolor, male, type 69 



XVI. Simias concolor, male, type 69 



XVII. (i) Symphalangus syndactylus, male, Tapanuli 

 bay, Sumatra. (2) SympJialangus klossii, 



male, type 71 



XVIII. (i) SympJialangus syndactylus, male, Tapanuli 

 bay, Sumatra. (2) Symphalangus klossii, male, 



type 71 



XIX. (i) Symphalangus klossii, male, type. (2) Sym- 

 phalangus s\'ndactylus, male, Tapanuli bay, 



Sumatra 72 



XX. Transparency of the atmosphere from holographic 



observations 77 



XXI. Bolographic energy curves of the solar spectrum 

 of a 60° glass prism. Observations of April 



17, 1903 79 



XXII. Distribution of radiation in the normal solar spec- 

 trum outside the earth's atmosphere 81 



XXIII. The large coelostat with second mirror, Smith- 



sonian Astrophysical Observatory 88 



XXIV. Living finback whales. {Balconoptera physalus 



L.) (i) Preparing to descend. . (2) Just 



reaching the surface 92 



XXV. Living finback whales. {Balcenoptera physalus 

 L.) (i) After spouting. (2) Similar atti- 

 tude, nearer view. (3) Posterior view 92 



XXVI. Living finback whales. (Balcenoptera physalus 

 L.) (i) Ready to descend. (2) Process of 

 descending — head under water, back arched. . . 92 

 XXVII. Skeleton of Hesperornis in the U. S. National 



Museum 95 



