I have no problems getting a REST query to return the expected result set when I use a single clause-
http://website/_api/web/lists/getbytitle('MyList')/items?$filter= StartDate ge datetime'2014-01-01T00:00:00Z'
but when I try to add a second parameter
& Odata__EndDate le datetime'2013-12-31T00:00:00Z'
it ignores the second parameter. What's going wrong here?