--- a/BitArray.st	Tue Apr 11 09:37:12 2017 +0200
+++ b/BitArray.st	Tue Apr 11 12:03:40 2017 +0200
@@ -71,7 +71,7 @@
     They require only 1/32th (32bit machines) or 1/64th (64bit machines) of the memory 
     compared to an array of booleans.
 
-    They one stores 8 bits per byte. Since instances store bits in multiples
+    They store 8 bits per byte. Since instances store bits in multiples
     of 8, the real size of the collection is kept in an extra instance variable (tally).
     It may be useful if huge boolean arrays are needed.