ERRATA. 



Page 47, line 31, /or c AA n read AA" in both cases. 



5G 21 ' similarly point,' read point similarly. 



63 18 ' tf 2 ' read 6. 



C X 3 C 2 X 3 



65 17 ' -' read : , in some copies. 



69 32 fc sa' read as. 



_ 101 18 -' = i/ s6 ~ g fcc.' read y = 5 -^ 



s s 



126 37 c pane' read plane, in some copies. 



129 19 after 4 <?/>' read : : instead of : . 



141 22 after shall be" insert to. 



143 15 after ' to' insert be. 



171 26 for ' ~> read . 



o o 



177 16 ' res-' read rest. 



216 14 dele c W in the numerator. 



223 19 for ' number' read numbers. 



230 20 ' TO', w', w", ' read TO, TO', TO". 



aw aw 2 



310 18 'f reorff 



320 46 ' 0,09134' read 0,00134. 



325 27 ' Gfi" read GM. 



- 344 _l,_<^!ve<^. 

 3 3 



360 24 inclose ' J + fc' in brackets, thus (# -f- 



364 7 /or ' 6' read 5. 



366 4 ' 0,45' read 0,045. 

 _ 366 - 23 -T- ' 1,14' read 1,74. 



373 3 



373 26 



