NO. 8 



WATER- VAPOR TRANSPARENCY — FOWLK 



13 



^} 



D 



■\/ 



r — I 



-i—r 





Fig. 4. — Lamp of 88 Nernst filaments. Vz size. 



jjoTE. — Each pair of filaments was placed so that one filament was slightly to the lear, 

 enabling them to be assembled in closer order. 



