CONFORME ABBILDUNG DES SPHAROIDS IN DER EBENE. 
165 
logw # = logiV—Ax — By — \Cxx — Dxy — \Byy..., 
so wird hienach: 
all =—Ax — By aR — Ay — Bx 
$RR = — \Cxx— Dxy — \Dyy fi'RR — [C— E)xy — D{xx —yy) 
etc. etc. 
? = +lzBx + {iD + T ' ir AB){xx—yy) 
— \Ay -f-( \-\E ttAA-J-ttBB)xy... 
<I> = -\-\Bx-\-[\B — T S-AB)[xx — yy) 
— \Ay + (— \C-\-\E+^AA—frBB]xy...; 
r = iV(I2 + ^ojKJ2 + (^ß + -i-aa — ^ T a'a')R?...) 
logr = logiV'i^ + i-aE4-(4-ß + T V( act — o.'a))RR... 
= log №R + (tV? + *(a« “ •.. 
= lo gN*R-Th{C+BB-AA)xx 
-t 1 T {D—2AB)xy 
-Y i T^ + AA~BB)yy 
etc., 
wenn № der Werth von n* für den Punkt in der Mitte der geraden Linie [also 
log № = log .ZV-f* \ fl RR -j-... ist]. 
Es sei nun 
[log» =] log^f = [e -\~ e '%+ 6"xx + ...)(F+^) 2 
+ (f+f x+f"xx + ...){Y+yY 
+ C? +...) (F+3/) 6 
etc., 
indem die zweite Coordinate [im Anfangspunkt] = Y [ist], so ist 
— logiV = eYY + f'Y i + gY e ... 
A = e'YY+ f'F‘+ g'Y“ ... 
B = ieY +4/T 3 + 6gY 5 ... 
iC = e"YY+ f"Y‘ + g'Y" ... 
D = 2e'Y + ifY*+6g'Y* ... 
±E = e +6/'FF+15^F 4 ... 
etc.