Calendar: 1864-1865 Page 579

MEDICAL DEPARTMENT 581 freezing-point Mention the circumstances if any by which eacli process is modified when the same substance is submitted to experiment Describe the construction of the air pump and the prin- ciple on which it acts What is the limit to its power How is the extent of the exhaustion ascertained Describe the gold-leaf electroscope its action on the approach of positively charged insulated conductor and the mode of charging it by induction Give general account of what is understood as the phenomenon of dialysis Explain what is meant by capillary action What forces appear to be concerned in the operation IV -Ci tmtitrg Enumerate the non-metallic elements Give their atomic weights and their density either in the solid or gaseous state What will be the density of equal volumes of the following gases hydrogen being steam protoxide of nitrogen dentoxide of nitrogen hydrochloric acid ammonia Describe the mode of preparing hydrochloric acid give its properties in the gaseous state and in solution give in symbols its reactions upon quicklime red oxide of mercury red oxide of iron and black oxide of manganese Give the preparation of nitric acid from nitrate of soda State how the acid acts on zinc and on tin What tests have you for nitric acid in solution 10 What compounds does sulphur form with oxygen and with hydrogen Describe the preparation and properties of sulphurous acid 11 How is ammonia obtained What are the most delicate tests of its presence Describe the method of applying them 12 Describe the preparation of phosphorus and give symbols of the reactions