A scratchy 

 improperly 

 made pen 

 is not only 

 exasperat- 

 ing but a strain on the 

 writer. No need to put 

 up with it when you can 

 get Esterbrook Pens. 



Easiest writing, longest wearing. 

 Backed by a half-century's repu- 

 tation. Ask your dealer. 



^pnH I Of *><"■ useful metal box contajn- 

 OCiiu I \J\j. jjjg X2 oi our most popular 

 pens, including the famous Falcon 048. 



Esterbrook Pen Mfg. Co. 



New York 



Camden, N.J. 



I 



m 



■Q 



EsterbrooK 



250 Styles Pens 



Would You Be Interested? 



ir a man came to your desk and 

 thowed you a pen or pencil that 

 would add « wbuact u it wriie*? 



Of cotirse you would; anybody would f 



We have do nich pen or pencil, but we h<ve something belter. We 

 have a typewriur which doe* lU thii, and you know that the typewriter 

 ii three times aa fast as any pen or pendU This typewriter it th« , 



Rem ins:ton 



Adding and Subtracting. 

 Typewriter 



(Waht Addins Mechanism) 



Thii machine adds or lubtracts and writes; not only chat but it 

 add* or subtract! leftm tt wAm. Both operations are one. 



Ymt mU ihit nocAint In «our iMn^,- eveiy man needs it wJw hw 

 billmg to do, or any writing and adding to do on the same page. It 

 saves time, saves labor, detects errors, prevenu errors, gives you ■- 

 mechanical insurance of absolute accuracy. 



We stand ready to give this machiile a test m jmv ««fi(; a test 

 which will convince you that you need it. 



Remington Typewriter Company 



I4«w York and EvcrywIwrB 



The Stereopticon that meets 

 every requirement 



You are sure — not only of sharp, vivid 

 images of clear definition over the entire 

 field, of perfectly even illumination — 



but also of extreme mechanical and optical accuracy, of simplicity 



and durability when you use the 



^ausch^lomb 



BALOPTICON 



THE PERFECT STEREOPTICON 



Whether your requirements are for lantern slide or opaque projection — or for a combi- 

 nation of both forms — you will find a Balopticon to meet them, every one. 



Model C — for slides 



Fitted ■with our new gas-filled Mazda lamp 

 which is attachable to any lamp socket and 

 is absolutely automatic. 



$35.00 complete 



Thfe new Combined Model for both opaque 



and slide projection, -with instant interchange. 



$120.00 



Write us for our interesting Balopticon booklet 



gausch ^ Ipmb Optical ©. 



554 ST. PAUL STREET KOCHESTBR, N.Y. 



Leading American manufacturers of Photographic Lenses, Microacopes, Field Glasses, and other high-grade optical products. 



