diff --git a/src/backend.memory.js b/src/backend.memory.js
index 00f1db4c..0c83a7d1 100644
--- a/src/backend.memory.js
+++ b/src/backend.memory.js
@@ -141,21 +141,19 @@ this.recline.Backend.Memory = this.recline.Backend.Memory || {};
       }
 
       function range(record, filter) {
-        var filterStart = filter.start || filter.from;
-        var filterStop = filter.stop || filter.to;
-        var startnull = (_.isUndefined(filterStart) || filterStart === null || filterStart === '');
-        var stopnull = (_.isUndefined(filterStop) || filterStop === null || filterStop === '');
+        var fromnull = (_.isUndefined(filter.from) || filter.from === null || filter.from === '');
+        var tonull = (_.isUndefined(filter.to) || filter.to === null || filter.to === '');
         var parse = getDataParser(filter);
         var value = parse(record[filter.field]);
-        var start = parse(startnull ? '' : filterStart);
-        var stop  = parse(stopnull ? '' : filterStop);
+        var from = parse(fromnull ? '' : filter.from);
+        var to  = parse(tonull ? '' : filter.to);
 
         // if at least one end of range is set do not allow '' to get through
         // note that for strings '' <= {any-character} e.g. '' <= 'a'
-        if ((!startnull || !stopnull) && value === '') {
+        if ((!fromnull || !tonull) && value === '') {
           return false;
         }
-        return ((startnull || value >= start) && (stopnull || value <= stop));
+        return ((fromnull || value >= from) && (tonull || value <= to));
       }
 
       function geo_distance() {
diff --git a/src/widget.filtereditor.js b/src/widget.filtereditor.js
index ff92af87..3473b9d5 100644
--- a/src/widget.filtereditor.js
+++ b/src/widget.filtereditor.js
@@ -59,9 +59,9 @@ my.FilterEditor = Backbone.View.extend({
             <a class="js-remove-filter" href="#" title="Remove this filter" data-filter-id="{{id}}">&times;</a> \
           </legend> \
           <label class="control-label" for="">From</label> \
-          <input type="text" value="{{start}}" name="start" data-filter-field="{{field}}" data-filter-id="{{id}}" data-filter-type="{{type}}" /> \
+          <input type="text" value="{{from}}" name="from" data-filter-field="{{field}}" data-filter-id="{{id}}" data-filter-type="{{type}}" /> \
           <label class="control-label" for="">To</label> \
-          <input type="text" value="{{stop}}" name="stop" data-filter-field="{{field}}" data-filter-id="{{id}}" data-filter-type="{{type}}" /> \
+          <input type="text" value="{{to}}" name="to" data-filter-field="{{field}}" data-filter-id="{{id}}" data-filter-type="{{type}}" /> \
         </fieldset> \
       </div> \
     ',
diff --git a/test/backend.memory.test.js b/test/backend.memory.test.js
index 9b88bec2..440e7d8d 100644
--- a/test/backend.memory.test.js
+++ b/test/backend.memory.test.js
@@ -99,20 +99,6 @@ test('filters', function () {
     deepEqual(_.pluck(out.hits, 'country'), ['UK','UK','UK']);
   });
 
-  query = new recline.Model.Query();
-  query.addFilter({type: 'range', field: 'date', start: '2011-01-01', stop: '2011-05-01'});
-  data.query(query.toJSON()).then(function(out) {
-    equal(out.total, 3);
-    deepEqual(_.pluck(out.hits, 'date'), ['2011-01-01','2011-02-03','2011-04-05']);
-  });
-  
-  query = new recline.Model.Query();
-  query.addFilter({type: 'range', field: 'z', start: '0', stop: '10'});
-  data.query(query.toJSON()).then(function(out) {
-    equal(out.total, 3);
-    deepEqual(_.pluck(out.hits, 'z'), [3,6,9]);
-  });
-
   query = new recline.Model.Query();
   query.addFilter({type: 'range', field: 'date', from: '2011-01-01', to: '2011-05-01'});
   data.query(query.toJSON()).then(function(out) {
@@ -126,42 +112,25 @@ test('filters', function () {
     equal(out.total, 3);
     deepEqual(_.pluck(out.hits, 'z'), [3,6,9]);
   });
+
 });
 
 
 test('filters with nulls', function () {
   var data = _wrapData();
 
-  query = new recline.Model.Query();
-  query.addFilter({type: 'range', field: 'z', start: '', stop: null});
-  data.query(query.toJSON()).then(function(out) {
-    equal(out.total, 6);
-  });
-
   query = new recline.Model.Query();
   query.addFilter({type: 'range', field: 'z', from: '', to: null});
   data.query(query.toJSON()).then(function(out) {
     equal(out.total, 6);
   });
 
-  query = new recline.Model.Query();
-  query.addFilter({type: 'range', field: 'x', start: '', stop: '3'});
-  data.query(query.toJSON()).then(function(out) {
-    equal(out.total, 3);
-  });
-
   query = new recline.Model.Query();
   query.addFilter({type: 'range', field: 'x', from: '', to: '3'});
   data.query(query.toJSON()).then(function(out) {
     equal(out.total, 3);
   });
 
-  query = new recline.Model.Query();
-  query.addFilter({type: 'range', field: 'x', start: '3', stop: ''});
-  data.query(query.toJSON()).then(function(out) {
-    equal(out.total, 4);
-  });
-
   query = new recline.Model.Query();
   query.addFilter({type: 'range', field: 'x', from: '3', to: ''});
   data.query(query.toJSON()).then(function(out) {
@@ -169,11 +138,6 @@ test('filters with nulls', function () {
   });
 
   data.records[5].country = '';
-  query = new recline.Model.Query();
-  query.addFilter({type: 'range', field: 'country', start: '', stop: 'Z'});
-  data.query(query.toJSON()).then(function(out) {
-    equal(out.total, 5);
-  });
 
   query = new recline.Model.Query();
   query.addFilter({type: 'range', field: 'country', from: '', to: 'Z'});
@@ -181,12 +145,6 @@ test('filters with nulls', function () {
     equal(out.total, 5);
   });
 
-  query = new recline.Model.Query();
-  query.addFilter({type: 'range', field: 'x', start: '', stop: ''});
-  data.query(query.toJSON()).then(function(out) {
-    equal(out.total, 6);
-  });
-
   query = new recline.Model.Query();
   query.addFilter({type: 'range', field: 'x', from: '', to: ''});
   data.query(query.toJSON()).then(function(out) {
@@ -350,14 +308,14 @@ test('filters', function () {
   });
 
   dataset = makeBackendDataset();
-  dataset.queryState.addFilter({type: 'range', field: 'date', start: '2011-01-01', stop: '2011-05-01'});
+  dataset.queryState.addFilter({type: 'range', field: 'date', from: '2011-01-01', to: '2011-05-01'});
   dataset.query().then(function() {
     equal(dataset.records.length, 3);
     deepEqual(dataset.records.pluck('date'), ['2011-01-01','2011-02-03','2011-04-05']);
   });
   
   dataset = makeBackendDataset();
-  dataset.queryState.addFilter({type: 'range', field: 'z', start: '0', stop: '10'});
+  dataset.queryState.addFilter({type: 'range', field: 'z', from: '0', to: '10'});
   dataset.query().then(function() {
     equal(dataset.records.length, 3);
     deepEqual(dataset.records.pluck('z'), [3,6,9]);
diff --git a/test/widget.filtereditor.test.js b/test/widget.filtereditor.test.js
index 656185c2..5faa0189 100644
--- a/test/widget.filtereditor.test.js
+++ b/test/widget.filtereditor.test.js
@@ -41,7 +41,7 @@ test('basics', function () {
   $editForm.find('.filter-range input').last().val('4');
   $editForm.submit();
   equal(dataset.queryState.attributes.filters[0].term, 'UK');
-  equal(dataset.queryState.attributes.filters[1].start, 2);
+  equal(dataset.queryState.attributes.filters[1].from, 2);
   equal(dataset.records.length, 2);
 
   // now remove filter