Term Papers on Lazzaro Spallanzani

Term Paper Title	Lazzaro Spallanzani
# of Words	739
# of Pages (250 words per page double spaced)	2.96

Lazzaro Spallanzani

Lazzaro Spallanzani

     Lazzaro Spallanzai, was the Italian physiologist who was one of the founders of

experimental biology. Born in Scandiano, a small town in the providence of Emilia on

Jan. 12, 1729 , Spallanzani was among the many dedicated philosophersof the eighteeth

century (Lazzaro...1). His main scientific interests were biological and was a master at

mircoscopy,but he also looked into problems of physics,chemistry, geology, and

meteorology, and volcanology (Gillispie,1).

     After attending a local school, Spallazani went at afe fifteen to a Jesuit seminary

in Reggio Emilia where he dominated in rhetoric, philosophy, and languages. He left

Reggio Emilia in 1749 to study jurisprudence at the ancient University of Bologna, where

he expanded is education in mathematics, chemistry, natural history, and aquired

a knowledge of French (Asimov,1). For three years he worked toward his docterine in

law. In 1753 or 1754 he became a doctor of philosophy. Then, he recieved instructions in

metaphysics and theology and took minor orders. Within  a few years he became a priest

and added himself to two congregations in Modena (Gillispie,2).

     Spallanzani, in hundreds of experiments tested various rituals for rendering

infusions permanently barren and finally found that they remained free of

microorganisms when put into flasks that were sealed and the contents boiled for one

hour (Lazzaro...1).The entrance of air into the flask through a slight crack in its neck was

                                                       Patel 2

followed infusoria. He reported no spontaneous generation in strongly heated infusions

protected from aerial contamination. In 1765, after cutting up thousands of earthworms

and exploiting the ability of the aquatic salamander to regrow its tail, he resolved to

investigate reproductive phenomena in animals ans plants(Gillispie,3). He proved this by

cuting theworms the area that affected the segmental regenerative response. Amputation

of the tailwas followed by vascularization of the transparent growing stump. He also

established the general law that in susceptible species inverse ratio obtains between the

regenerativecapacity and age of the animal. Lazzaro launched countless experiments

relating to infusion animalcules and "spermatic worms," with result that soon made

chimera of thevegetatice force and undermined the docterine of organic molecules; but

these ideasdemanded more attention so the...

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