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_3110 ( "No. in series" real, "Title" text, "Directed by" text, "Written by" text, "Original air date" text, "Production code" real )

### Question ###
How many episodes were written by Ross brown?

### Accurate SQL ###

SELECT COUNT("No. in series") FROM table_3110 WHERE "Written by" = 'Ross Brown'