An examination of Dr. Crawford's theory of heat and combustion / by William Morgan.
- William Morgan
- Date:
- 1781
Licence: Public Domain Mark
Credit: An examination of Dr. Crawford's theory of heat and combustion / by William Morgan. Source: Wellcome Collection.
Provider: This material has been provided by The University of Leeds Library. The original may be consulted at The University of Leeds Library.
35/78 page 31
![[ 3« ] abfolute heat of the one is to that of the other in the ratio of 87 to one. Admitting Dr. C’s principles to be true, and at the fame time that he has not been deceived in making his Experiments, thefe fadts appear to be decifive. But I mud confefs, that though I have repeated thole Experiments in all the va- riety of methods I could think of, I have never yet been able to didinguifh the lead difference between any kinds of air. It is a pity that Dr. C. had not been more particular with re- fpedt to the manner in which he made thofe Experiments. This would have led us to dif- cover where the inaccuracy lay. At prefent we arc left to conjecture; though perhaps the fol- lowing Experiments may aflid a little in di- recting us. EXPERIMENT I. Air in the room being 64, three quarters of a pint of common air was introduced into a bladder (Fig. id.) (d) in which a Thermo- meter (a) had been previoufly fixed, and the whole was covered over with hot fand till the mercury rote to 1120. The bladder was then taken out, and with the utmod expedition im- merfed in one pint of water at 62*}. The ther- mometers r](https://iiif.wellcomecollection.org/image/b21513958_0037.jp2/full/800%2C/0/default.jpg)
