f>2 Oscar Moellor, Hamburg. 



Barometers at all prices, of any desired finish and style 

 of framing from the very plainest up to the most elegant master- 

 pieces of wood carving. 



The Patent Barometers, manufactured exclusively by Oscar 

 Moeller, are cheaper than any other type and, besides, excel in the 

 following points: 



1. Accurate working and great sensibility, the slightest variation 

 of atmospheric pressure being at once rendered apparent, there 

 being no dead movement to absorb it as is the case with com- 

 plicated lever work;' 



2. absence of so called ,,back lash", which is inavoidable in a 

 complicated mechanism ; 



3. but very little occasion for repairs, none of the parts being 

 exposed to breakage; the instruments are thus capable of re- 

 sisting shocks and falls and are, in particular, suitable for 

 shipment abroad; 



4. absence of back or forward movement of the index, which is 

 a common feature with the more complicated instruments: 



5. elegant appearance of the entire visible mechanism: 



6. great lightness in weight effecting great saving of freight 

 and postage. 



Dials engraved in the following languages: German, English, 

 French , Italian , Spanish , Portuguese , Dutch , Danish , Norwegian, 

 Swedish, Bohemian, Polish, Croatian and Russian. 



Sizes of Dials: 80, 95, 115, 130, 180, 260 mm diameter; 

 sizes 95, 115, 130, 180, 260 mm diameter may also be had fitted 

 with adjustable glass scales. Glass scale barometers are provided 

 w r ith silvered or finely enamelled insides. 



Paper Dials, adjustable, are supplied gratis on application. 

 Firms' names on paper dials supplied gratis; if on glass dials 40 Pf. each. 



Price lists in German and English and Book of illustrations 

 free of charge on application. 



Patent Compensation Plate Thermometers (metal - index), 

 in which, after the manner of barometers, the pointer indicates the 

 temperature, in lieu of atmospheric pressure, on a graduated dial, 

 are supplied mounted in all kinds of frames forming elegant orna- 

 ments and useful companions to barometers. They are also supplied 

 in the form of contact thermometers adjusted to sound a bell so as 

 to indicate rise or fall of temperature beyond certain given limits, 

 e. g. the thermometer may at will be set to signal 10 as the lower 

 limit of fall and 20 as the upper limit of rise of temperature. 



The barometers manufactured by this firm are of the greatest 

 sensibility and are warranted to indicate correctly. The exhibits in- 

 clude barometers of a great variety of prices and styles of frames 

 from the plainest wood to artistic wood carving, also barometers with 



