diff --git a/zipline/history/history.py b/zipline/history/history.py
index e5b147b3..f9779110 100644
--- a/zipline/history/history.py
+++ b/zipline/history/history.py
@@ -248,7 +248,7 @@ class HistorySpec(object):
     @property
     def ffill(self):
         """
-        Wrapper around ffill that returns False for fields which are not
+        Wrapper around self._ffill that returns False for fields which are not
         forward-fillable.
         """
         return self._ffill and self.field in self.FORWARD_FILLABLE
diff --git a/zipline/history/history_container.py b/zipline/history/history_container.py
index 38811c88..83f088f6 100644
--- a/zipline/history/history_container.py
+++ b/zipline/history/history_container.py
@@ -100,7 +100,7 @@ def ffill_digest_frame_from_prior_values(field, digest_frame, prior_values):
 
 def freq_str_and_bar_count(history_spec):
     """
-    Helper for getting the frequency string from a history spec.
+    Helper for getting the frequency string and bar count from a history spec.
     """
     return (history_spec.frequency.freq_str, history_spec.bar_count)