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There is one report in this number which attracts medical attention, but it is rather curiously put. It is headed "Yellow Fever: Scientific Experiments Made at Rio Janeiro, Showing the Transmission of the Disease by Contagion," and is forwarded by Minister Andrews. The report reads " on the 14th we took " etc., but throughout the report there is no key as to who "we" might be. St. Menezes Doria, Dr. Domingos Freire, and Dr. Arango Goes are all mentioned incidentally. In substance, laboratory experiments are given, where some grammes of blood were taken from the heart of a person dying of yellow fever, in which blood the microscope revealed the presence of cryptococci, in different phases of full development. One gramme of this blood was injected into the vein of a rabbit, which died in fifteen minutes with tetanic convulsions. This rabbit's blood, one gramme, was similarly injected hypodermically in a Guinea-pig, which died