2.Zettel! 
Lexika:Vereinigte staaten C 127.888/Kat. 


Encyclopedia Americana.-The Encyclopedia Americana. 
International Edition. Vol. 1-30.


40

-New York: Americana Corporation (1974.) 

21. Orley-Photographic ~ 
/Telescope 
22.-Photography-Pumpkin 

23. Pumps-Russellville 
24. Russia-Skimmer 
25. Skin-Sumac 
26. Sumatra-Trampoline 
27. Trance-Venial 
28. Venice-Wilmot 
29. Wilmot Proviso --Zygote
30. Index