Tag Archives: Louis Pasteur

In the late 19th century, Louis Pasteur would find himself at the center of the spontaneous generation debate. However, it was only after centuries of conjecture, assumptions and the earlier scientific discoveries of others that Pasteur had the ability to put forth the crucial experiment that would uproot the theory of spontaneous generation. From the time of the ancient Greeks …

The theory of Spontaneous Generation proposed that life or living organisms could be “spontaneously generated” from non living matter. Similar to Louis Pasteur’s spontaneous generation experiment, the 17th century Italian scientist Franceso Redi conducted an experiment to refute the theory of Spontaneous Generation nearly 200 years earlier. Controlled Experiment by Redi Francesco Redi showed that maggots do not spontaneously arise …

…it was in 1857 that Louis Pasteur discovered that yeast generated carbon dioxide as a product of fermentation and it is, of course, the presence of this gas trapped in bubbles by the elastic strands of the protein gluten that causes the bread to rise. Read the full article…

In 1883, speaking in Edinburgh, Louis Pasteur claimed that Scotland had been the first nation to link its fortunes with the development of the human mind. He was referring to the enlightenment of the late 18th century, which had arisen thanks not only to philosophers and scientists, but also to the concentration of printers and bookmakers in Edinburgh. Read the …

October 26, 1885.— A Method for the Prevention of Rabies after the Bite of a Rabid Animal. — The prophylaxis of rabies such as I exposed it in my own name and in the name of my fellow-workers in my preceding notes certainly constituted a real progress in the study of that disease. But the progress realised was more scientific …

May 19, 1884. — The Attenuation of Rabies. — The great notions of the variability in the virulence of certain viruses, and of the preservation against a given virus by the inoculation of another of lower intensity, are to-day recognised scientific facts already put to practical uses. It is easy to apprehend all the interest attaching, in that line of …

February 25, 1884. — The Academy received with favour our preceding communications on rabies, incomplete though they were, justly considering that each step forward in the experimental study of that disease deserved to be encouraged. The new facts which I shall have the honour to communicate to-day — in my own name and in the name of my fellow-workers, amongst …

December 11, 1882. — The study of rabies, of all diseases, seems to be the one which bristles with most difficulties. Clinical observation is powerless, and it is ever necessary to appeal to experimentation. But until }’esterday the significance of the simplest experiment was wrapped up in undecipherable uncertainties. The saliva was the only part where the presence of the …

May 30,1881. — The Academy may remember that we began the study of hydrophobia in the month of December last, assisted by Messrs. Chaniberland and Boux, whom M. Thuillier kindly joined. By comparing the external symptoms of that malady with certain microscopical observations made on the brains of persons or animals who had died of hydrophobia, and by considering that …

January 24, 1881. — On a New Malady produced by the Saliva of a Child who died of Rabies. Note by M. L. Pasteur, with the Collaboration of Messrs. Chamberland and Roux. This note deals with the experiments undertaken with the saliva of the child who died in Mr. Lannelongue’s ward. This saliva, injected into dogs and rabbits, gave rise …