Calendar: 1872-1873 Page 575

576 MEDICAL DEPARTMENT Describe tbe structure and uses of tlie skin tbe nature and growth of hair and nails Give the position of an adult heart and tbe position of its valves and those of its great blood-vessels to the walls of the chest What are the boundaries communications and contents of the cavity of the tympanum fjiiStnlogy What are the functions of the glossopharyngeal nerve the pharyngeal branch of the vagus and the portio dura What are the deep origins of the cranial nerves Describe the structure of hair and that of its follicle What is the state of vision in emmetropia hypermetropic presbyopia myopia and astigmatism Why does the tympanum contain air What is the use of the tensor tympani and stapedius muscles What are the sources of heat within the body Aid the descriptions by drawings when necessary Cijemtett Compare the conditions under which alcohol may be made to yield ether and olefiant gas respectively Explain the production of urea by the action of phosgene gas oxychloride of carbon upon ammonia Write the formulae of the following compounds in such manner as to show that they are all members of the ethyl series di-ethyl ether alcohol ethylamine sulphethylic or sulphovinie acid true sulphuric ether acetic ether State the chemical constitution of the amides How would you prove by experiment that substance belonged to that class Illustrate by an example How is commercial cyanide of potassium prepared What impurities are always present in it Give process for ascer- taining tbe quantity of cyanide which it contains