Then, since nr rl is also a rational integral function of n of degree r, we can find a coefficient c r, not containing n, and such as to make N-c r nr ri contain no power of n higher than n r - 1.
Methyl orange (helianthin, gold orange, Mandarin orange), (CH 3) 2 N C 6 H 4 N 2 C 6 H 4 SO 3 Na, is the sodium salt of paradimethylaminobenzene-azo-benzene sulphonic acid.
The presence of the phenanthrene nucleus and the chain system CH 3 N C C follows from the fact that these alkaloids, by appropriate treatment, yield a substituted phenanthrene and also dimethylaminoethanol (CH3)2N CH2 CH20H.
Bet ore the tonic the same change between a and e constantly takes place; one finds in manuscripts enar, emor for anar, amor (the same extends even to the case of the tonic syllable, ten and sent from t a n t u in and 1 a n c t u m being far from rare), and, on the other hand, antre, arrar, for entre, errar.