280 
assimilated by the animal body and passed on, after undergoing 
some changes, by the portal system towards the liver and then to 
the gall bladder. 
In view of the great difficulty in solving this question by pur- 
ely chemical and physical methods, it would be worth while to 
attack it also by a physiological method. Wertheimers !) researches 
will be at this junetion of considerable help. This author proved 
that the bile of the dog flowing from a temporary biliary fistula 
exhibited no absorption bands which appeared however after slowly 
injecting, varying quantities of sheeps bile into one of the femoral 
veins. This cholehaematie bile of the dog ought to be produced 
also by injecting a solution of phylloerythrine. Furthermore it is 
necessary yet to examine thoroughly the influence of various kinds 
of food on the nature of the bile colouring matters of herbivora. 
I hope to be able to return to this subject at some future occa- 
sion. The action of redueing agents on phylloerythrine in view of 
the result quoted above of Mae Munn relating to cholehaematin, 
occupies my attention at the present moment. 
27. M. W. STEKLOFF. Addition ao Mémoire: „Sur la théorie des séries 
trigonométriques“. Mémoire présenté par M. St. Zaremba m. c. 
1. Dans mon Mémoire: „Sur la théorie des series trigonométri- 
ques“ (Bulletin de l’Académie des sciences de Cracovie, novembre 
1903), s’est glissée une inadvertance qui, n'ayant aucune influence 
sur l'exactitude des résultats, peut néanmoins donner lieu à un mal- 
entendu. Je crois de mon devoir de la corriger dans cette addition. 
2. Je dis (p. 720, 721): „Or, les fonctions F'(Ë) et p (£, n) satis- 
font à toutes les conditions du lemme du numéro 2, comme nous 
l'avons déjà montré dans le numéro 3. 
En appliquant ce lemme au cas considéré, on trouve 
2T 2T 
a 
lim fr Elend fr® lim @(&, 2) de 
n=00 
o 0 
27 
= fl FE) 9, (8) dE 
Archive de Physiologie 1891. p. 724. 
