Show marine telescope maka an all oblong narrow box out ol of four pieces of quarter inch board a bout about two feet long by sixteen inches wide and nt fit a piece of clear clean glass across one end held in place by brass headed tacks driven into the wooi wood and overlapping the glass fill all the cracks with sealing wax to keep out the light then plunge the glass end two or three inches into the water an look through the open end thia sim plo marine telescope is made on the principle of the more anre elaborate gleasen through which to look at tho the famous gardens under the sea near the catalina islands christian herald |