Show are made balloons are manufactured of gold beaters bea tera sain which though small toy ones had been made of it could not be produced in sufficient quantities forthe for the large balloons until colonel templer invented and perfected the process which is briefly as follows the gold beaters skin is mado up of quantities of a certain thin animal membrane of these are required for a balloon of cubic feet capacity pa city which is first freed from all fatty substances and then soaked in 1 solution of glycerin and water they aro then applied to boards cut in abo form and to the size of the gore of tho balloon required others are then euper posed until n thickness of four layers has been reached great care being taken that no air bubbles remain between the skins after this fourth layer a method of strengthening is resorted to in the shapo of a net manufactured of skin after thia net two or three more layers of membranes aro applied the whole is then allowed to dry and a solution of boiled linseed oil is used as a varnish the fabric is then quite indissoluble and the membranes cannot by any possible means bo separated from ono another but sometimes to render this homogeneity the moro perfect a solution of of potash is sponged avei the fabric pall mall magazine |