Meanwhile, Hercules Florence had already present oneself a model allied movement in 1832, naming it Photographie, and William Fox Talbot had earlier discovered another means to predicament a pearly process image but had kept it secret. After paraphrase about Daguerre's invention, Talbot refined his action so that it might be fast enough to take photographs of people. By 1840, Talbot had invented the calotype process, which creates negative images. John Herschel made bounteous contributions to the latest methods. He invented the cyanotype process, now familiar as the "blueprint". He was the first to use the terms "photography", "negative" and "positive". He discovered sodium thiosulphate solution to be a solvent of argent halides in 1819, and informed Talbot and Daguerre of his discovery in 1839 that it could be used to "fix" pictures and make them Seattle Photographer permanent. He made the first glass negative in put off 1839.