Obituary. Karl Sax (1892-1973)

Recent experiments indicate that the phenothiazine tranquilizer chlorpromazine is able to protect against the mutagenic effects of the acridines proflavin, acriflavin and quinacrine in tester strains of Salmonella typhimurium.     

Human botulism in Canada (1919-1973)

Since 1919, in Canada, 62 authenticated outbreaks of human botulism have affected 181 persons, with 83 deaths, a fatality rate of 46%. Among these, 41 outbreaks were bacteriologically determined (31 in one laboratory) as six type A, four type B, one both A and B, and 30 type E. About two thirds of the total outbreaks, cases and deaths involved Eskimos and Pacific coast Indians consuming raw marine mammal products and salmon eggs, respectively. Other parts of Canada recorded seven occurrences due to miscellaneous vehicles, three being type B. Since January 1961 there have been 38 outbreaks, involving 94 cases with 33 deaths. These include 18 outbreaks among Eskimos, affecting 51 persons (of whom 24 died) in Labrador, southern Baffin Island, northern Quebec, and the Mackenzie area. Also, putrid salmon eggs caused 15 outbreaks among Pacific coast Indians, totalling 35 cases, of whom only six died, the low fatality rate reflecting the introduction of type E botulinus antitoxin during 1961.     

深切缅怀尹赞勋教授

今年 2月 2 3日是我国著名的地质学家和古生物学家 ,我国地质科学重要的行政领导和管理者 ,我们敬爱的师长尹赞勋教授诞辰 1 0 0周年 ,我们怀着崇敬的心情 ,深切缅怀尹赞勋教授。尹赞勋教授 ,河北省平乡县人 ,1 91 9年进入北京大学学习 ,1 92 3年夏留学法国 ,1 92 6年 6月法国里昂大学毕业 ,1 93 1年 4月获里昂大学博士学位后回国。解放初 ,尹赞勋教授担任中国科协南京分会副理事长 ;1 950年 1 1月担任中国地质工作计划指导委员会第一副主任 ;1 952年 9月担任北京地质学院副院长兼教务长 ;1 956年 6月担任中国科学院生物学地学部副主任委员 …