“…They received pellets recipe R, forced wheat, and water ad libitum. At the time of the experiment, the animals were 4-6 months old and had an average weight of 100 g. Defined tumour cell suspensions (0.5 ml), each containing 2 x 10° living AMel 3 melanoma cells1 obtained by carefully-fractionated trypsination, were subcutaneously transplanted into the right side of the body [Wohlrab and Peker, 1971] in a total of 31 animals. 4-7 days after transplantation, the animals were pre-treated intramuscularly with 0.02 mg atropine (Atropinum sulfuricum, Chimpharm, Sofia) and 2 mg promazine (Sinophenin, Deutsches Hydrierwerk, Rodleben), and then anaesthesized intraperitoneally with 150 mg urethan (Athylurethan, Philopharm, Quedlinburg) in slight ether anaesthesia.…”