diff --git a/src/List.java b/src/List.java
index 586a4d5..e02a648 100644
--- a/src/List.java
+++ b/src/List.java
@@ -116,8 +116,17 @@
 		}
 	}
 	
+	/**
+	 * Append an IList<T> to this list.
+	 */
 	public void append(IList<T> aList) {
+		@SuppressWarnings("unchecked")
+		T[] elements = (T[]) aList.getAllElementsAsStrings();
+		int size = size();
 		
+		for (T element : elements) {
+			addAt(size++, element);
+		}
 	}
 	
 	/**