PROCEEDINGS 



PHILOSOPHICAL SOCIETY OF GLASGOW. 



FORTIETH SESSION, 1841-42. 



CONTENTS. 



Me. Crum on Clilorimetry, and on a new Mode of Testing weak Solutions of 



Bleaching Powder, 17 



Mr. Mackain on the Ventilation of the Glasgow Fever Hospital, . . .24 



Mb. Thomson on an Improved Tilting Apparatus for Railway Waggons, . . 25 



Dr. Anderson on the Physiology of Cells, 28 



Report on the best Means of Supplying the Poor with Cheap and Nutritioufl 



Food, 29 



2dih December, 1841, — The President in the Chair, 



Mr. Gilbert Weir was admitted a member. 



At the request of Mr. Liddell, the Physiological section were 

 instructed to collect information respecting the best means of prepar- 

 ing cheap and nutritious food. Mr. Liddell stated that the managers 

 of the Night Asylum for the Houseless, and of similar institutions 

 would probably receive considerable benefit from a report embodying 

 this information. 



The following communications were read:— 



V. — On Digestion, By Dr. John Fiudlay. 



[The absence of the Author, who is at present on the Continent, 

 renders it impossible to give an abstract of this Memoir.] 



VI. — On Chlorimctry, and on a new mode of Testing weak Solutions of 

 Bleaching Powder. By Walter Crum, Esq. 



Chloride of Lime is one of those substances whose value cannot bo 

 judged of from its external appearance, and which is always mixed 

 with a certain quantity of foreign matter. An experiment is there- 

 fore necessary to test it, and an easy method of performing such an 

 experiment has always been a desideratum with those who manu- 

 facture or employ it. 



I propose to give an account of some of the methods which have 

 been hitherto in use for ascertaining the strength of mixtures con- 

 taining chlorine, and then to describe one I have myself employed 

 for some time. 



No. 2. 



