Previous animal experiments with asbestos dusts have been almost entirely confined to chrysotile asbestos. It was, therefore, decided to investigate the effects of mill dusts from the three types of asbestos that are produced commercially in South Africa, namely chrysotile, amosite, and crocidolite. Chrysotile and amosite samples were relatively pure while in contrast the crocidolite dust was f...

Several years ago I was walking along a farm-road close to Piltdown Common, Fletching (Sussex), when I noticed that the road had been mended with some peculiar brown flints not usual in the district. On enquiry I was astonished to learn that they were dug from a gravel-bed on the farm, and shortly afterwards I visited the place where two labourers were at work digging the gravel for small repai...

Abstract The southwestern part of Luxembourg, known as Minett in the local language use, exposes an exceptionally high diversity marine near-shore sediment rocks from Early to Middle Jurassic, owing its proximal position at north-eastern margins Paris Basin. iconic Minette ironstone formation is worldwide largest oolitic deposit last 500 my and abandoned open cast mines are nowadays protected s...