National Geographic : 1914 Oct
Build the New Way Self-Sentering . , reduces cost saves time To all the advantages of concrete construction the important element of economy can be added by the use of Self-Sentering. It does away with expensive form work that was a necessity in the old method of concrete construction. Self-Sentering proves a modern, safe, economical way of building. For Self-Sentering is both reinforcement and form. Every dollar spent on Self-Sentering construction is for permanent work. With Self-Sentering, the highest type of roof-concrete-is an economic possibility. Two-inch concrete roofs, pitched, flat or curved, are strong, rigid and fireproof. Two-inch Self-Sentering partitions are rigid and great space savers. Compared with the usual six-inch partition, they add one square foot of floor space to every three lineal feet of partition. Figure the added total income thus made possible from every floor. Before you decide on plans discuss this modern construction with your architect or builder. SFI Send for Fireproofing Handbook which shows the almost unlimited application of Self-Sentering to _g_ every type of building and explains fully about it. Send us the name of your architect or builder so we can co-operate with him. The General Fireproofing Co., 1510 Logan Ave.,Youngstown, O. Makers also of HerringboneLath, the StandardMetalLath The concrete reinforcement Pat. Mar. 3, 1914 j that eliminates the need of Other patents TT forms. You'll know it by its now pending Diamond Mesh. HOW TO WIN BIRDS FREE If everybody only knew how many thousands of native birds die Mr. Dodson's of sta- nationevery winter, no one who has a home would fail to beautifully illus set out : feeding house or shelter for birds. Now is the best trated Book time to put out bird houses as well as feeding and shelter houses, about Birds You can keep many beautiful birds with you all winter and they tells how to win will attract more birds to your place by telling them how well you and keep native care for birds. To save birds and to win birds, putout birds livingin DODSON SHELTERED FOOD HOUSES your garden. particularly designed for American Native Birds. Used success- Write for it. fully for many years. Dodson Bird Houses give a lifetime of Famous Dodson Sparrow Trap service and add beauty and happiness to your life. Getridofsparrowsandnativebirdswill SLetme send you my Free Book telling how to win birds---based return. This trap catches as many as on 18 years' work for Native Birds. Write to 75 to100sparrowsaday. Worksauto Dosn Shelted H e JOSEPH H. DODSON, matically. You remove sparrows once Dot'son Sheltered Food House JSE H S aday. Builtofstrongtinnedwire, elec ittofclea rwhitepine,24x24xl8inches. 702 Security Bldg., tricallywelded. Verystrong, practical, Price, with 8-ft. pole, $aI:o .Chicago; winth cupper roof, $10. A F'eeding Tible. Chicago, Ill. durable; size, 36xl8xl 2 inches. with 8-ft. pole, $6; with oopperroof,g7.0. Feeding Car, $5. Feeding Shelf, $.50 Mr.Dodso is a Director ofthe Price, f. o. b Chicago Illinois Audubon Society. "Mention the Geographic-It identifies you."