260 
Crude ethereal solution of the 10% acid fraction. 
A. Concentration 1 
B. Concentration 1 : B C. Concentration 1 : 9 
Band I X 644 — 632 
„ II X 593 — 571 
„ III X 555 — 533 
„ IV X 519 — 488 
max. X 635 
shadow X 584*5 
X 582 — 572 
III X 550*5 — 540 
IV x 517 — 497 
max. X 576 
„ X 544*5 
„ X 506 
Finally measurements may be quoted obtained for two chloro- 
formic solutions of crystals of phytorhodine soluble in 12°/ 0 hydro¬ 
chloric acid and of a transformation product of allophyllotaonine^ 
of similar basicity. 
Allophyllotaonine derivative 
Band I X 646 — 639 5 
„ II X 594 — 574 
„ III X 565 — 547 
IV X 524 — 506 
Phytorhodine 
x 647 — 641 
X 594 — 575 
X 564*5 — 549*5 
X 525 — 507 
The absorptions in the ultraviolet caused by the transformation 
product of allophyllotaonine are exactly the same as the absorptions 
of phytorhodines and we need not describe them here again. We 
refer instead to the plates accompanying this paper. They enable 
also a comparison of the absorption spectra in the more refrangible 
part of the spectrum of phyllotaonine and allophyllotaonine and the 
phytorhodines. Whereas the latter cause in ethereal solution only 
one well defined band in the region betweem 436 and 334 /ifi, 
allophyllotaonine causes three. One of them is very pronounced 
and situated in diluted solution on the Hg = 405 fifi line, another 
past the triplet 366 and a third in front of the Hg — 334 / 1 p 
line. The latter two bands are faint and scarcely visible on the 
reproductions of the photographs. Chloroformic solutions show these 
bands more clearly, the strongest band is at the same time shifted 
somewhat towards the red end of the spectrum. Phyllotaonine shows 
a similar absorption spectrum in this region. Well defined is only 
one band just past the Hg = 405 fA/i line. Two very faint bands 
appear past the triplet Hg = 366 [ä[a. 
The results described above show undoubtedly that allophyllo¬ 
taonine is converted under the influence of acids at higher tem¬ 
perature into substances which are identical with a group of bodies 
