In Italy some scientists tried to cure paralysis by electric shock, claiming moderate success. In May 1748, for instance, Jean-François Calgagnia, thirty-five years old, was given an electric shock from a simple cylinder-type Leyden jar. Since the age of twelve, his left arm had been so paralyzed he could not lift his hand to his head. After the first electrical treatment he at once raised his arm and touched his face. There is no record as to whether the cure was permanent. After Franklin became aware of this phenomenon, he was agog to try experiments on his own. He wrote of his interest to a London friend, Peter Collinson, a Quaker merchant and member of the Royal Society. Collinson promptly sent him a glass tube, along with suggestions as to how it might be used for electrical experiments. This was all Franklin needed to get started. He was not trained in scientific matters as were many of his European contemporaries. He was unfamiliar with scientific jargon, and could only write about what he was doing in everyday language. But he had those qualities that are innate in any scientist, with or without a university degree—an inquiring mind, patience, and persistence. His experiments, beginning with the winter of 1746, covered a wide range. He melted brass and steel needles by electricity, magnetized needles, fired dry gunpowder by an electric spark. He stripped the gilding from a book, and he electrified a small metallic crown above an engraving of the King of England—so that whoever touched the crown received a shock! His home was soon so crowded with curious visitors trooping up and down the stairs, he could hardly get any work done. He solved the problem by having a glass blower make tubes similar to his, passing them out to friends so they could make their own experiments. Several of the Junto members worked closely with him. At first they electrified the tube, as was still done in Europe, by vigorously rubbing one side of it with a piece of buckskin. One of the club members, a Silversmith named Philip Synge, devised a sort of grindstone, which revolved the tube as one turned a handle. To charge the tube with electricity, all that was needed was to hold the buckskin against the glass as it revolved, a vast saving in physical labor. Another invention of Franklin and his associates was the first storage battery. For electrical plates they used eleven window glass panes about six by eight inches in size, covered with sheets of lead, and hung on silk cords by means of hooks of lead wire. They found it as easy to charge this “battery” with frictional electricity as to charge a single pane of glass.