SCIENCE. 



[Vol. XI. No. 272 



arid Mech. 



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Which Cyclopedia? 



It is generally admitted that a good Cyclopedia is a desirable pos- 

 session for every home. As to which Cyclopedia is the best for popular 

 use, the " Doctors disagree." Evidently the matter of choice should de- 

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 of Alden's Maijifold Cyclopedia •m-ites to the publisher as follows : 



" I have been exhibiting the Manifold among my acquaintances, and expatiating 

 on its excellence and wonderful cheapness. Among those to whom I have shown 

 the volumes, I found but one young man who did not need the Manifold. He 

 has a cyclopedia ; a number of large volumes ; he did not know how many, nor did 

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'■ ' Certainly,' said he, ' I use them every day.' 



" ' What can you possibly do with them?' 



" ' "Why, I press ray trousers with them.' 



"'My dear sir,' said I, 'you do not need the Manifold. Mr. Alden publishes 

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The fifth volume of Alden's Manifold Cyclopedia, which has jii~t 



been published, more than sustains the good reputation of the previi)u.< 



Vr^ I 1 1 YY\ O, O ^®^"®®' ^"^^^S' especially, more 

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Tlie Liferarij Revolution C(if(ilof)uc (84 pages) sent free on application. 



Alden's pnblications are NOT sold hy hoolc-scllfrs^no discounts except to Stockholders. Books- 

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JOHN B. ALDEN, Publisher, NEW YORK: 



3B;j Pearl St.; F. O. Box 1237. CHICAGO: Lakeside Building, Clark and Adams Sts. 



TILESTON & HOLLIESWORTH, 



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For information apply to the Secretary of Ha 

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FOK SALE at : 

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