8. All animals received water and food ad libitum. Rats were fed with a commercial stock diet (Purina Laboratory Chow); cats, with ground horsemeat or beef replaced once weekly with ground beef, pork, or sheep liver and once weekly with fish; and dogs with three parts Purina Dog Kibble to one part of ground meat, replaced once weekly with one part of liver. 9. Drs. Abner Wolf and David Cowen concurred in the pathological findings of these preliminary studies. 10. This report has dealt only with the findings related to the central nervous system. A description of the course of intoxication, the hematological changes, and the visceral lesions is in preparation. After this study was completed, our attention was drawn to a description of the pathological effects of 6-AN in young rats and mice (11). 11. M. Morsiani and E. Soffritti, Riv. anat. patol. e oncol. 11, LXXI (1956); A. Baserga, M.In 1956 Lang (1) reported that biennial Hyoscyamus niger, when treated with gibberellin, bolted and bloomed the first season without cold or long-day treatments and that the long-day, annual form of this species bloomed under short days when treated with gibberellin. As early as 1928 Kurosawa (2) had noted that rice plants infected with Gibberella fujikuroi, the fungus which produces gibberellin, flowered earlier than uninfected plants. In 1951 Mitchell, Skaggs and Anderson (3) reported that bean plants, when treated with gibberellin, bloomed earlier than the controls. Lang, however, was the first to demonstrate that gibberellin could substitute for longday and low-temperature treatments in the induction of bolting and initiation of flowering.Soon after his first papers appeared, Lang (4) and other investigators, in-8. All animals received water and food ad libitum. Rats were fed with a commercial stock diet (Purina Laboratory Chow); cats, with ground horsemeat or beef replaced once weekly with ground beef, pork, or sheep liver and once weekly with fish; and dogs with three parts Purina Dog Kibble to one part of ground meat, replaced once weekly with one part of liver.
Drs. Abner Wolf and David Cowen concurredin the pathological findings of these preliminary studies. 10. This report has dealt only with the findings related to the central nervous system. A description of the course of intoxication, the hematological changes, and the visceral lesions is in preparation. After this study was completed, our attention was drawn to a description of the pathological effects of 6-AN in young rats and mice (11). 11. M. Morsiani and E. Soffritti, Riv. anat. patol. e oncol. 11, LXXI (1956); A. Baserga, M.
