Philosophical Transactions of the Royal Society of London, Volume 108W. Bowyer and J. Nichols for Lockyer Davis, printer to the Royal Society, 1818 |
From inside the book
Results 1-5 of 46
Page 43
... glass was a diaphragm forming a perpen- dicular opening , the sides of which were parallel , and capable of being placed nearer , or further asunder . The edges of this diaphragm were adjusted so as to form tangents to the hori- zontal ...
... glass was a diaphragm forming a perpen- dicular opening , the sides of which were parallel , and capable of being placed nearer , or further asunder . The edges of this diaphragm were adjusted so as to form tangents to the hori- zontal ...
Page 49
... glass of the micrometer microscope is of one inch focus , the distance from the object glass to the spider's threads 3,25 inches , the focus of the compound eye - glass rather less than one inch , the magnifying power 18 times ...
... glass of the micrometer microscope is of one inch focus , the distance from the object glass to the spider's threads 3,25 inches , the focus of the compound eye - glass rather less than one inch , the magnifying power 18 times ...
Page 50
... glass is of three quarters of an inch focus , and the magnifying power consequently greater . The mi- crometer head is divided into one hundred parts . Each microscope slides in a tube , which is fixed in a plate of brass forming part ...
... glass is of three quarters of an inch focus , and the magnifying power consequently greater . The mi- crometer head is divided into one hundred parts . Each microscope slides in a tube , which is fixed in a plate of brass forming part ...
Page 60
... glass tube , serving as rollers to prevent friction , and the trough was of the same depth as the width of the bar . Two transverse lines were drawn near the extremities of the edge of the bar , distant from each other 49,5 inches , and ...
... glass tube , serving as rollers to prevent friction , and the trough was of the same depth as the width of the bar . Two transverse lines were drawn near the extremities of the edge of the bar , distant from each other 49,5 inches , and ...
Page 111
... glass , there were seen , at the bottom of the vessel , a multitude of grains like sand . It was found on trial that these grains were carbonate of lime ; probably of slightly calcined Carrara marble . When turnsol is treated with water ...
... glass , there were seen , at the bottom of the vessel , a multitude of grains like sand . It was found on trial that these grains were carbonate of lime ; probably of slightly calcined Carrara marble . When turnsol is treated with water ...
Other editions - View all
Common terms and phrases
20 feet telescope 24 hours ammonia angle appear Aquila ascertained axes axis Azimuth Barom barometer barytes BIOT blood bones calcareous spar carbonate centre chlorine Clock cluster of stars coagulum colour compression connoissance crystals DALTON Daumergidda deduced degree determined double refraction elastic force equal equation experiments glass globules Hazy heat hypophosphorous acid inches index error knife edges latent heat latitude length lime MDCCCXVIII mean measure mercury meridian mètre micrometer microscope muriatic muriatic acid Namthabad nearly number of vibrations obtained oxygen parallax Patchipolliam pectoral fin pendulum phenomena phosphoric acid phosphorus plane plate polar distance polarising force pole position potash prism produced profundity Punnæ purpurate quantity rectangular right ascension scale Sin.² Slider specific gravity sternum strontian sulphate supposed surface SW 1 Cloudy Temp temperature Therm thermometer thickness tints tion tube turnsol vapour Vibrations in 24 weight