Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_19224 ( "Institution" text, "Location" text, "Established" real, "Gained university status" real, "Vice-chancellor" text, "Total Number of Students" real, "Research Funding (\u00a3,000)" real )

### Question ###
How many members have professor edward acton as vice-chancellor?

### Accurate SQL ###

SELECT COUNT("Total Number of Students") FROM table_19224 WHERE "Vice-chancellor" = 'Professor Edward Acton'