Griffin felt very encouraged after a successfully turning invisible some white wool fabric. He then caught hold of a white coloured cat outside his window. Now he got down to turn his cat invisible. He fed her and made her comfortable on the pillow of his truckle bed before proceeding. He administered some drugs to the poor creature. It was not an easy job and he had to struggle against the cat resistance. After having processed her, he realized that he had been partially successful. Griffin gave her drugs to bleach her blood and carried out certain other procedures. By and by though the rest of cat became invisible still her two eyes kept on staring him. This partial failure robbed him of the joy that he would have felt. Despite long hours of efforts when griffin could not do anything’s more about it he let cat out of the window with a mixed feeling of joy and failure. The experiment docent’s gave complete sense of satisfaction that he had anticipated.