Esprit Jouffret

Esprit Jouffret, a French mathematician, was born Mar. 15, 1837.  In 1903, Jouffret published a book entitled Traité élémentaire de géométrie à quatre dimensions (Elementary Treatise on the Geometry of Four Dimensions). In this work, which we have in our History of...

Johann Winkler

Johann Henrich Winkler (sometimes Winckler), a German electrical experimenter, was born Mar. 12, l703.  In the early 1740s, electrical experimentation was all the rage in England and France, but it had yet to make inroads into the physics laboratories of German...

Samuel Stevens

Samuel Stevens, a natural history broker, was born Mar. 11, 1817. In the late 1840s and 1850s, Henry Walter Bates and Alfred Russel Wallace travelled tens of thousands of miles in the Amazon basin (Bates and Wallace) and the Malay Archipelago (Wallace alone),...

Marcello Malpighi

Marcello Malpighi, an Italian microscopist, was born, or perhaps baptized, on Mar. 10, 1628. Malpighi is noted for his many discoveries with the microscope: capillaries, taste buds, the alveoli in the lungs, and a whole host of other microscopic body structures....

Thomas Wollaston

Thomas Vernon Wollaston, an English entomologist, was born Mar. 9, 1822.  Wollaston, like his older contemporary Charles Darwin, took to collecting insects at an early age, but unlike Darwin, he never really enlarged his horizons.  He made four trips to Madeira, the...