Golding Bird (9 December 1814 – 27 October 1854) was a medical doctor who researched the chemistry of urine and kidney stones. From 1836, he lectured at Guy's Hospital and published a textbook on science for medical students called Elements of Natural Philosophy. Bird was innovative in the medical use of electricity, designing his own equipment and bringing medical electrotherapy into the mainstream. He invented a variant of the Daniell cell in 1837, making key discoveries in electrometallurgy. Bird also designed a flexible stethoscope, and in 1840 published the first description of one. In 1842, he was the first to describe oxaluria, a condition which leads to the formation of a particular kind of stone, and published a comprehensive paper on urinary deposits in 1844. A devout Christian, Bird believed Bible study and prayer were just as important to medical students as their studies. He founded the Christian Medical Association, although it did not become active until after his death. (Full article...)