xiv AMERICAN HOMES AND GARDENS 
May, Ig11 
CORNELL SIE 
STRENGTH SATISFACTION ECONOMY 
Carlos, Lee Co., Fla., MamoroneckeN bye | STAMFORD _ 
; ‘ _ Noy. 23, 1910 Aug. 2nd, 1909 NATIONAL BANK 
Wyckoff Ss & uate Co., Wyckoff Lumber & Mfg. Co. Stamford, Conn., 
Gentlemen acer aise Ithaca, N. Y. Nov, 10, 1910 
ventlemen : Gentlemen : reo pa kee 
The Cornell Portable House you sent ene en , STE Se Ee At en 
me some time ago I consider to be a The little bungalow you made on your special design for me thaca, . 
decidedly strong and well-braced struc- is exactly what I wanted. I congratulate myself in having put Gentlemen 
ture, and it withstood almost the full the work in your hiands Phe No. 2 Garage which IT bought 
force of the recent hurricane in Very truly yours, from you I found to be very satisfactory 
this part of Florida and sustained practi- HENRY B. EDDY in all re spt ts, and I think I saved 
cally no damage, whereas appar- about 25 per cent. of what it 
ently stronger houses around it 3 ~s would cost me to have had a similar 
were demolished. — It is a very Satisfied Customers “‘tel! the story. If you garage built here 
¢ ] : . : : Yours truly, 
Boodihonse andia handy one. need a practica!, substantial building for any pur- W. L. BALDWIN 
LAPARITA HEALTH RESORT | pose, let us tell you what we can do for you. Cashier 
Fireproof Garages a specialty Illustrated catalog 4c. stamps 
WYCKOFF LUMBER & MFG. CO., 410 Green St., Ithaca, N. Y. 
American Homes & 
Gardens & & & and 
Scientific American 
sent td one address 
for one tor one year. $6 
REGULARLY 
wu] Hin 
are attractive in appearance. Easily 
taken apart and set up. Will give 
entire satisfaction. 
Prices $150 to $500 
Write at once for illustrated 
pamphlet giving full details. 
Chesebro-Whitman Co., Inc. 
East 64th Street and First Ave., New York 
ALCOHO 
The Cost of Manufacturing Denaturized Alcohol in Germany and 
German Methods of Denaturization are discussed by Consul-General 
Frank H. Mason in Sczentzjic American Supplement 1550. 
The Use, Cost and Efficiency of Alcohol as a Fuel for Gas Engines 
are ably explained by H. Diederichs in Scven/7jic_ American Su pple- 
ment 1596. Many clear diagrams accompany the text. The article con- 
siders the fuel value and physical properties of alcohol, and gives details 
of the alcohol engine wherever they may be different from those of a 
gasoline or crude oil motor 
In Scientific American Supplement 1581 the Production of In- 
dustrial Alcohol and its Use in Explosive Motors are treated at length, 
valuable statistics being given of the cost of manufacturing alcohol from 
farm products and using it in engines. 
French Methods of Denaturization constitute the subject of a good 
article published in Sczen¢zfic American Supplement 1599. 
How Industrial Alcohol is Made and Used is told very fully and 
clearly in No. 3, Vol. 95, of the Sczentzfic American. 
The most complete treatise on the Modern Manufacture of Alcohol, 
explaining thoroughly the chemical principles which underlie tbe pro- 
cess without too many wearisome technical phrases, and describing and 
illustrating all the apparatus required in an alcohol plant is published in 
Scientific American Supplements 1603, 1604 and 1605. The 
article is by L. Baudry de Saunier, the well-known French authority. 
Send for Our New 1910 Supplement Catalogue. 
OLD ENGLISH GARDEN SEATS 
RUSTIC WORK 
New Catalog of many desigus on request 
North Shore Ferneries Company, 
Beverly, Massachusetts 
Its Manufacture 
Its Denaturization 
Its Industrial Use 
In Supplements 1607, 1608, 1609 we publish a digest of the rules 
and regulations under which the U. S Internal Revenue will permit 
the manufacture and denaturation of tax free alcohol. 
A comparison of the Use of Alcohol and Gasoline in Farm Engines 
is given in Screnfific American Supplements 1634 and 1635 by 
Prof. Charles E. Lucke and S. M. Woodward. 
The Manufacture, Denaturing and the Technical and Chemical 
Utilization of Alcohol is ably discussed in the Scientific American 
Supplements 1636 and 1637 by M. Klar and F. H. Meyer, both ex 
perts inthe chemistry and distillation of alcohol. Illustrations of stills 
and plants accompany the text 
The Sources of Industrial Alcohol, that is the Farm Products from 
which alcohol is distilled, are enumerated by Dr. H. W. Wiley in 
Scientific American Supplements 1611 and 1612 and their relative 
alcohol content compared. 
The Distillation and Rectification of Alcohol isthe title of a splendid 
article by the late Max Maercker (the greatest authority on alcohol) pub- 
lished in Sczen/tfic American Supplements 1627 and 1628. Dia- 
grams of the various types of stills in common use are used as illustrations 
In Sczentjfic American Supplement 1613 the Uses of Industrial 
Alcohol in the Arts and in the Home are discussed. 
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HH Noteworthy Articles 
ON TIMELY TOPICS 
SEWAGE AND ITS DISPOSAL. A 
review of modern methods. By H. 
Lemmoin-Cannon. Scientific American 
Supplement 1551. 
ELECTRIC LIGHTING FOR AMA- 
TEURS. How a small and simple ex- 
perimental installation can be set up 
at home. Scientific American Supple- 
ment 1551. 
CHEMICAL AFFINITY. Simply ex- 
plained by Sir Oliver Lodge. Scienti- 
fic American Supplement 1547. 
CASE-HARDENING. By David 
Flather. Scientific American Supple- 
ment 1547. 
ELECTRIC IGNITION SYSTEMS. A 
comprehensive article by E. W. Rob- 
erts. Scientific American Supplement 
1546. 
CONCRETE. A general article on its 
merits and defects. Scientific Ameri- 
can Supplement 1543. 
REINFORCED CONCRETE. Some of 
its Principles and Applications with 
practical Illustrations. Scientific 
American Supplements 1547, 1548, 
1551. 
ELECTRONS AND THE ELECTRO- 
NIC THEORY are discussed by Sir 
Oliver Lodge in Scientific American 
pple eitce: 1429, 1430, 1431, 
1432, 1433, I 
WIRELESS TERLEGRAPHY. Its Pro- 
gress and Present Condition are well 
discussed in Scientific American Sup- 
plements 1425, 1426, 1427, 1386, 1388, 
1389, 1383, 1381, 1327, 1328, 1329, 1431. 
HOW TO CONSTRUCT AN EFFI- 
CIENT WIRELESS TELEGRAPH 
APPARATUS AT SMALL COST is 
told in Scientific American Supplement 
1363. 
SELENIUM AND ITS REMARK- 
ABLE PROPERTIES are fully de- 
scribed in Scientific American Supple- 
ment 1430. The paper is illustrated by 
numerous engravings. 
LANGLEY’S AERODROME. Fully de- 
scribed and illustrated in Scientific 
American Supplements 1404, 1405 and 
1546. 
STEAM TURBINES. Their Construc- 
tion, Operation and Commercial Ap- 
plication. Scientific American Supple- 
ments 1306, 1307, 1308, 1422, 1400, 1447, 
1370, 1372, 1521. The articles have all 
been prepared by experts in steam en- 
gineering. 
PORTLAND CEMENT MAKING is 
described in excellent articles con- 
tained in Scientific American Supple- 
ments 1433, 1465, 1466, 1510, I5II. 
THE TANTALUM LAMP. A full illus- 
trated description of a lamp having a 
metallic filament and burning at once 
without preliminary heating appears in 
Scientific American Supplement 1523. 
THE WATERPROOFING OF 
FABRICS is thoroughly discussed in 
Scientific American Supplement 1522 
by an expert. 
THE SPARK COIL, ITS CONSTRUC- 
TION AND MAINTENANCE, is the 
subject of a painstaking article in 
Scientific American Supplement 1522. 
ELECTRIC IGNITERS FOR GAS EN- 
GINES are discussed in Scientific 
American Supplement 1514. 
CARBURETERS, a subject of immense 
importance to automobilists and the 
users of oil engines, is well treated in 
Scientific American Supplement 1508. 
EPICYCLIC TRAINS, which play an 
important part in toothed gearing, are 
ably described in Scientific American 
Supplement 1524. 
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