50 G. Hinrichs on Planetology. 
of the distance, as it is found approximating to Titius-Bodes 
law, that is, to 
oe oe . yee ee ste 
But quantities that sustain mutual relations to tank other are 
the particular values of a certain function for definite given 
values of the variable quantities; hence, if we intend to be true 
to the spirit expressed by the words of Laplace above quoted, 
it is a problem legitimately elouiging to astronomy to find these 
Junctions of which the fundamental constants are but parvieular 
va ab 
8 boldly face this great problem and not desist thong 
iebeinonérs tell us that it is not part of their science. 
$3. The fundamental constants tans 8 the conditions cf stability of te 
Since relations exist el the values of the tindanneail 
stants, we may ask for the most general gy pe of the 
1. Incommensurability I the times of rotation, ensured by ibe 
distances ee an exponential series (1). : 
central mass vastly preponderating, and the greatest. 
se a ising where the mutual distances are the most col 
sidera 
8. The direction of all motions is the same 
4. The plane of all orbits is and remains nearly the same, because 
= ma/a.tg2i=e, 2) 
is and remains a small quantity (the letters having shensani 
Nification as in §1), 
science. Less arrogant, because more true, he is when writing to Burnet 
1680-81), but yet I must confess I know no sufficient cause of ye coe 
eonsint tall Ki 
something more ange nor Ped can accoun rae when ree the S the henoleirlll 
the rotary and translatory motions. He says: “cet accord, gui tient doute a 
premiéres Rett nares Jes mouvements planétaires, est é 
