Note: This text has been automatically extracted via Optical Character Recognition (OCR) software.
Oitr ^
ugliness , but to raise the standard of ideal beauty . This right and left shot fit the pre-Raphaelites on the one hand and the Academy on the other appeared not to be lost upon the audience . Mr . Hope concluded a very interesting and erudite address by recommending those whose lot It was to live in a waning age , to continue their search after the truth . Whatever the result might be , they could not fail to derive satisfaction , for it was certain that , to toil , lEibour , and if heed be to die for the truth , was the common sense not only of art , but of all human life . The next lecture will be delivered on the 22 nd Inst ., by Mr . William Burgess . Subject ^ - " Conventional Ornament of the Thirteenth Century . " The members of tha-Eoyal Institute of British Architects met on Monday last , when a paper was read by Mr . Gk Bell , on the geometrical treatment of sculpture ..
The Chemistry Of Common Things.
THE CHEMISTRY OF COMMON THINGS .
BY FRANCIS HENRY BAKER . T I . —HEAT . ( Continued from page 444 . )
4 . Relation , of Heat with Light . —There appears to be sucli an intimate connexion between light and heat that many have supposed that one cannot exist without the other , and that they are both but different effects of the same principle . And this supposition is supported by many of the most prominent phenomena . The rays of the sun contain light and heat combined in certain fixed proportions ; the light from a fire , or from the flame of a candle , lamp , or gas , is accompanied by heat ; most of the properties of rays of light are
shared by those of heat j the degree in which bodies radiate and reflect heat depends upon the quantity of light which their surfaces reflect ; the capability of bodies to absorb heat varies with the colour 3 combustion is accompanied by light ; and bodies when heated to a certain degree , become luminous . But thep , on the other hand , in these cases the light and heat , though naturally co-existent , may
he separated by artificial nieans , and there are numerous instances in which light exists unaccompanied by heat , and vice versa . Bodies Inay be heated up to 600 ° or 700 ° , Ayithout emitting any sensible quantity of light , and no traces of heat have been discovered in the phosphorescence of certain substances , or in the light of the moon . Perhaps the most striking example of the production of light by means of heat is in the phenomena of incandescence . Bodies are not visible unless they transmit light to the eye , and this they cannot in
Note: This text has been automatically extracted via Optical Character Recognition (OCR) software.
Oitr ^
ugliness , but to raise the standard of ideal beauty . This right and left shot fit the pre-Raphaelites on the one hand and the Academy on the other appeared not to be lost upon the audience . Mr . Hope concluded a very interesting and erudite address by recommending those whose lot It was to live in a waning age , to continue their search after the truth . Whatever the result might be , they could not fail to derive satisfaction , for it was certain that , to toil , lEibour , and if heed be to die for the truth , was the common sense not only of art , but of all human life . The next lecture will be delivered on the 22 nd Inst ., by Mr . William Burgess . Subject ^ - " Conventional Ornament of the Thirteenth Century . " The members of tha-Eoyal Institute of British Architects met on Monday last , when a paper was read by Mr . Gk Bell , on the geometrical treatment of sculpture ..
The Chemistry Of Common Things.
THE CHEMISTRY OF COMMON THINGS .
BY FRANCIS HENRY BAKER . T I . —HEAT . ( Continued from page 444 . )
4 . Relation , of Heat with Light . —There appears to be sucli an intimate connexion between light and heat that many have supposed that one cannot exist without the other , and that they are both but different effects of the same principle . And this supposition is supported by many of the most prominent phenomena . The rays of the sun contain light and heat combined in certain fixed proportions ; the light from a fire , or from the flame of a candle , lamp , or gas , is accompanied by heat ; most of the properties of rays of light are
shared by those of heat j the degree in which bodies radiate and reflect heat depends upon the quantity of light which their surfaces reflect ; the capability of bodies to absorb heat varies with the colour 3 combustion is accompanied by light ; and bodies when heated to a certain degree , become luminous . But thep , on the other hand , in these cases the light and heat , though naturally co-existent , may
he separated by artificial nieans , and there are numerous instances in which light exists unaccompanied by heat , and vice versa . Bodies Inay be heated up to 600 ° or 700 ° , Ayithout emitting any sensible quantity of light , and no traces of heat have been discovered in the phosphorescence of certain substances , or in the light of the moon . Perhaps the most striking example of the production of light by means of heat is in the phenomena of incandescence . Bodies are not visible unless they transmit light to the eye , and this they cannot in