The radioactivity of springs near Bagnoles-de-l'Orne and its relation to geological structure

✍ Scribed by Gfs

• Book ID: 104124843
• Publisher: Elsevier Science
• Year: 1923
• Tongue: English
• Weight: 67 KB
• Volume: 195
• Category: Article
• ISSN: 0016-0032
• DOI: 10.1016/s0016-0032(23)90792-1

✦ Synopsis

March, 1923.1 CURRENT TOPICS. 429

germinate and before any' green parts are formed. The conditions under which vitamin B is produced are still somewhat uncertain, but its existence in yeast shows that it may be produced without action of light. Milk from stall-fed animals is poor in A and also likely to be deficient in C. The comparatively enormous amount of A ~n codliver oil has been one of the most striking results of recent investigations, but in connection with these data the fact that liberal exposure to sunlight will often counteract certain dietetic deficiencies must not be overlooked. It must not be forgotten that most of these feeding experiments are conducted in laboratories not open freely to sunshine and that the animals are under decidedly unnatural conditions in some ways. H.L.