A (\ Natllol'Sl l?(>ili*;ij>r '/Alf iiicsri/,()i,si-lt<>n l''ii>ra .l;il>i 



Taf IV, 



5. -1 v; 



ll 



LichidruckvJ.Jaegei', stocWiol 



Deiik.si-hririPiid.kais Akatl d Wi^s math natuw- ClasscBdJ.VlI. 



