VALUABLE PAPERS ON 



CONCRETE 



REINFORCED CONCRETE 



and CONCRETE 



BUILDING BLOCKS 



Scientific American Supplement 1543 



contains an article on Concrete by 

 Brysson Cunningham. The article 

 clearly describes the proper compo- 

 sition and mixture of concrete and 

 gives the results of elaborate tests. 



Scientific American Supplement 1538 

 gives the proportion of gravel and 

 sand to be used in concrete. 



Scientific American Supplements 1567, 

 156S, 1569, 1570 and 1571 contain an 

 elaborate discussion by Lieut. Henry 

 J. Jones of the various systems of 

 reinforcing concrete, concrete con- 

 struction and their applications. 

 These articles constitute a splendid 

 text book on the subject of rein- 

 forced concrete. Nothing better has 

 been published. 



Scientific American Supplement 997 

 contains an article by Spencer New- 

 berry, in which practical notes on 

 the proper preparation of concrete 

 are given. 



Scientific American Supplements 156S 

 and 1569 present a helpful account 

 of the making of concrete blocks by 

 Spencer Newberry. 



Scientific American Supplement 1534 

 gives a critical review of the engin- 

 eering value of reinforced concrete. 



Scientific American Supplements 1547 

 and 154S give a resume in which the 

 various systems of reinforced con- 

 crete construction are discussed and 

 illustrated. 



Scientific American Supplements 1564 

 and 1565 contain an article by Lewis 

 & Hicks, in which the merits and de- 

 fects of reinforced concrete are ana- 

 lyzed. 



Scientific American Supplement 1551 

 contains the principles of reinforced 

 concrete with some practical illus- 

 trations by Walter Loring Webb. 



Scientific American Supplement 1573 

 contains an article by Louis H. Gib- 

 son on the principles of success in 

 concrete block manufacture, illus- 

 trated. 



Scientific American Supplement 1574 

 discusses steel for reinforced con- 

 crete. 



Scientific American Supplements 1575, 

 1576 and 1577 contain a paper by 

 Philip L Wormley, Jr., on cement 

 mortar and concrete, their prepara- 

 tion and use for farm purposes. The 

 paper exhaustively discusses the 

 making of mortar and concrete, de- 

 positing of concrete, facing concrete, 

 wood forms, concrete sidewalks, de- 

 tails of construction of reinforced 

 concrete posts, etc. 



Scientific American Supplement 1586 

 contains a review of concrete mixing 

 machinery by William L. Larkin. 



Scientific American Supplement 1583 

 gives valuable suggestions on the 

 selection of Portland cement for con- 

 crete blocks. 



Scientific American Supplement 1581 

 splendidly discusses concrete aggre- 

 gates. A helpful paper. 



Scientific American Supplement 1595 

 and 1596 present a thorough discus- 

 sion of sand for mortar and concrete 

 by Sanford E. Thomson. 



Scientific American Supplement 1586 

 contains a paper by William L. Lar- 

 kin on Concrete Mixing Machinery, 

 in which the leading types of mixers 

 are discussed. 



Scientific American Supplement 1626 

 publishes a practical paper by Henry 

 H. Quimby on Concrete Surfaces. 



Scientific American Supplement 1624 

 tells how to select the proportions for 

 concrete and gives helpful sugges- 

 tions on the Treatment of Concrete 

 Surfaces. 



Scientific American Supplement 1634 

 discusses Forms of Concrete Con- 

 struction. 



Scientific American Supplement 1639 

 contains a paper by Richard K. 

 Meade on the Prevention of Freez- 

 ing in Concrete by Calcium Chloride. 



In Scientific American Supplement 1605 

 Mr. Sanford E. Thomson thoroughly 

 discusses the proportioning of Con- 

 crete. 



Scientific American Supplement 1578 

 tells why some fail in the Concrete 

 Block business. 



Scientific American Supplement 1608 

 contains a discriminating paper by 

 Ross F. Tucker on the Progress and 

 Logical Design of Reinforced Con- 

 crete. 



<J Each number of the Supplement cost* 10 cents. 

 fJA set of papers containing all the articles above 

 mentioned will be mailed for $3 40. QSend for a 

 copy of the 1910 Supplement Catalogue. flFree to 

 any address ^JOrder from your Newsdealer or from 



MUNN & CO., Inc., Publishers, 

 361 BROADWAY. NEW YORK 



ATLANTIC CITY, N. J. 



" Where the Surf Sings You to Sleep " 



Right at Chelsea's Fashionable Bathing Beach. Here 

 you find rest in abundance. The [ ocean rolls and 

 surges right up to — and under the hotel piazza, its 

 music is grand and soothing. Distinctly, the Ostend 

 has the finest location on the Beach. Within easy 

 walking distance and roller chair ride to the center of 

 life and gaiety for which Atlantic City is famous. 



The. Hotel is equipped with everything necessary for 

 human comfort and caters tojhe best patronage. 



All baths, private and public, have hot and cold running, 

 fresh and sea water. When the temperature is 

 highest and cities hot and grimy the Ostend is the 

 coolest and most comfortable hotel in Atlantic City. 

 Rooms large, airy, and 95 percent of them overlook 

 the ocean. Special Rates to Single Men. 



Rates are reasonable. Write for booklet and reservation 



DAVID B. RAHTER, - - Proprietor and Manager 



HOTEL OSTEND, ATLANTIC CITY, N. J. 



The Scientific American 

 Boy at School 



By A. RUSSELL BOND, 

 12 mo., 338 pages, 314 illustrations. Price, $2.00. 



t| This is a sequel to "The Scientific American Boy" and like its predecessor is brim full of 

 practical suggestions, all of which are entirely new. The construction of the apparatus, which 

 is within the scope of the average boy, is fully described and the instructions are interwoven in 

 a fascinating story, which makes the book interesting as well as instructive to the boy. This 

 volume contains instructions on surveying, sounding and signalling, the building of dams, canals 

 and canal locks, truss bridges and several different types of boats. Sun dials, clepsydras, 

 seismographs, gliding machines, kite photography and camera hunting are a few of the other 

 interesting subjects taken up. Other unique ideas are water kites, fish-tail boat-propellers, 

 bicycle sleds, geyser fountains, etc. No boy of a mechanical turn of mind can read the story 

 without being inspired to try his hand at making the devices. 



MUNN & CO., Inc. Publishers, 361 Broadway, New York. 



