Humphry Davy Rolleston

Summary

Humphry Davy Rolleston Dictionary of National Biography… (1912)

Macfadyen's main bacteriological work was on the intracellular juices or endotoxins of certain bacteria. While some germs such as those which produce diphtheria and tetanus give off poisons as they grow, others, such as those responsible for cholera and typhoid fever, retain their poisons, which are therefore known as endotoxins. In order to obtain these endotoxins Macfadyen froze bacteria by means of Sir James Dewar's liquid air to a temperature of - 190° C, and then ground up the bacteria thus rendered brittle.
Source: Wikisource

Humphry Davy Rolleston Dictionary of National Biography… (1912)

After becoming M.R.C.S. in 1842 he spent a year in Paris, where he paid much attention to mental diseases; on his return to London after unsuccessfully competing for the post of resident physician at Bethlehem Royal Hospital, he settled in general practice in Notting Hill and engaged in literary work on the ‘Lancet.’ His ambition was to become a medical teacher. He soon lectured at the Hunterian School of Medicine and on forensic medicine at Dermott's School, and was obstetric surgeon to the Western general dispensary.
Source: Wikisource

Humphry Davy Rolleston Dictionary of National Biography… (1912)

RINGER, SYDNEY (1835–1910) , physician, born at Norwich in 1835, was second son of John M. Ringer, a Norwich tradesman, who died when his children were very young, by his wife Harriet. His two brothers became successful merchants in the East. Ringer, whose simple and retiring disposition always bore the impress of severely nonconformist training in youth, began his medical education as an apprentice in Norwich, and soon after entered the medical faculty of University College in 1854, graduating M.B.London in 1860 and M.D. in 1863.
Source: Wikisource

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