A B C of television; or, Seeing by radio; a complete and comprehensive treatise dealing with the theory, construction and operation of telephotographic and television transmitters and receivers; written especially for home experimenters, radio fans and students.. (1929)

CATALOGUE OF GOOD, PRACTICAL BOOKS CONCRETE MONUMENTS, MAUSOLEUMS AND BURIAL VAULTS. By A. A. HOUGHTON. The molding of concrete monuments to imitate the most expensive cut stone is ex plained in this treatise, with working drawings of easily built molds. Cutting in scriptions and designs are also fully treated. (No. 6 of Series.) ... 75 cents MOLDING CONCRETE BATHTUBS, AQUARIUMS AND NATATORIUMS. By A. A. HOUGHTON. Simple molds and instruction are given for molding many styles of concrete bathtubs, swimming-pools, etc. These molds are easily built and permit rapid and successful work. (No. 7 of Series.) 75 cents CONCRETE BRIDGES, CULVERTS AND SEWERS. By A. A. HOUGHTON. A number of ornamental concrete bridges with illustrations of molds are given. A collapsible center or core for bridges, culverts and sewers is fully illustrated with de tailed instructions for building. (No. 8 of Series.) 75 cents CONSTRUCTING CONCRETE PORCHES. By A. A. HOUGHTON. A number of designs with working drawings of molds are fully explained so anyone can easily construct different styles of ornamental concrete porches without the pur chase of expensive molds. (No. 9 of Series.) 75 cents MOLDING CONCRETE FOUNTAINS AND LAWN ORNAMENTS. By A. A. HOUGHTON. The molding of a number of designs of lawn seats, curbing, hitching posts, pergolas, sun dials and other forms of ornamental concrete for the ornamentation of lawns and gar dens, is fully illustrated and described. (No. 11 of Series) 75 cents CONCRETE FOR THE FARM AND IN THE SHOP. BY H. COLIN CAMPBELL, C.E., E.M. A new book illustrating and describing in plain, simple language many of the numerous applications of concrete within the range of the homo worker. Among the subjects treated are: Principles of reinforcing; methods of protecting concrete so as to insure proper harden ing; home-made mixers; mixing by hand and machine; form construction, described and illustrated by drawings and photographs; construction of concrete walls and fences; concrete fence posts; concrete gate posts; corner posts; clothes line posts; grape arbor posts; tanks; troughs; cisterns; hog wallows; feeding floors and barn yard pavements; foundations ; well curbs and platforms; indoor floors; sidewalks; steps; concrete hotbeds and cold frames; concrete slab roofs; walls for buildings; repairing leaks in tanks and cisterns, etc., etc. A number of convenient and practical tables for estimating quantities, and some practical examples, are also given. (5 x 7). 149 pages, 51 illustrations. Price $1.00 CONCRETE FROM SAND MOLDS. By A A. HOUGHTON. A Practical Work treating on a process which has heretofore been held as a trade secret by the few who possessed it, and which will successfully mold every and any class of ornamental concrete work. The process of molding concrete with sand molds is of the utmost practical value, possessing the manifold advantages of a low cost of molds, the ease and rapidity of operation, perfect details to all ornamental designs, density and increased strength of the concrete, perfect curing of the work without attention and the easy removal of the molds regardless of any undercutting the design may have. 192 pages. Fully illustrated. Price $3.00 ORNAMENTAL CONCRETE WITHOUT MOLDS. By A. A. HOUGHTON. The process for making ornamental concrete without molds has long been held as a secret, and now, for the first time, this process is given to the public. The book reveals the secret and is the only book published which explains a simple, practical method whereby the concrete worker is enabled, by employing wood and metal tem plates of different designs, to mold or model in concrete any Cornice, Archivolt, Column, Pedestal, Base Cap, Urn or Pier in a monolithic form—right upon the job. These may be molded in units or blocks, and then built up to suit the specifications demanded. This work is fully illustrated, with detailed engravings. Price . $2.00 12