A NOVEL HAND CAMERA. springs. The diaphragm plate is attached on the front THE STEEL PIPE AND TUBE INDUSTRY. The remarkable progress that has been made within to a rotating ring surrounding the finder lens, and is I.-THE MANUFACTURE OF THE PIG IRON. the p ast few years in the construction of hand cam-thus rotated from the out!lide to whatever working The manufacture of pipe and tubing is one of those eras, whereby their cheapness, lightness, compact-aperture is desired. branches of the iron

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... stry that have been slow to ness, si m plicit y and accuracy are some of the predomi-Convenient strap rings are attached to the handle o f discard puddled iron in favor of Bessemer steel as the nan t points , is well exemplified in the camera called the camera for carrying i t over the shoulder or on a raw material of manufacture. This reluctance to use the the Adlake, which is the subject of our illustrations. bicycle. Pictures we have seen made with it are clear new material has been due to the difficulty in producing The well known box form of camera is adopted, and cut and distinct, showing that its c heapness is no bar lap and· bu tt welded stee� pipe that would be as strong comprises at the front all of the important essentials to the production of good work. at the weld as in the body of the pipe, and it is unde for good work; as, for example, a lens easily removable Its simplicity and certainty of working are its sali � niable that the e!>rlier attempts were marked by re for cleaning, a set of diaphragms quickly adjusted, a ent features, while at the sa ll le t im e its strength of ! peated failure. The obvious advantages of strength very si m ple yet rapid sh utter, e asily released, positive structur � is such as to permit of rough handling with-l and smaller cost in the use of steel were so great .