diff --git a/include/libtorrent/alert_types.hpp b/include/libtorrent/alert_types.hpp
index 6889500f3..06ee4cb44 100644
--- a/include/libtorrent/alert_types.hpp
+++ b/include/libtorrent/alert_types.hpp
@@ -240,7 +240,7 @@ namespace libtorrent
 	// of the piece. ``piece`` is the piece index that was read. ``size`` is the
 	// number of bytes that was read.
 	// 
-	// If the operation fails, ec will indicat what went wrong.
+	// If the operation fails, ec will indicate what went wrong.
 	struct TORRENT_EXPORT read_piece_alert TORRENT_FINAL : torrent_alert
 	{
 		// internal
@@ -1469,11 +1469,11 @@ namespace libtorrent
 		error_code error;
 
 #ifndef TORRENT_NO_DEPRECATE
-		// If the error happend to a specific file, ``file`` is the path to it.
+		// If the error happened to a specific file, ``file`` is the path to it.
 		std::string file;
 #endif
 
-		// If the error happend to a specific file, this returns the path to it.
+		// If the error happened to a specific file, this returns the path to it.
 		char const* file_path() const;
 
 		// If the error happened in a disk operation. a NULL-terminated string of
@@ -2226,7 +2226,7 @@ namespace libtorrent
 	};
 
 	// holds statistics about a current dht_lookup operation.
-	// a DHT lookup is the travesal of nodes, looking up a
+	// a DHT lookup is the traversal of nodes, looking up a
 	// set of target nodes in the DHT for retrieving and possibly
 	// storing information in the DHT
 	struct TORRENT_EXPORT dht_lookup
diff --git a/include/libtorrent/disk_buffer_holder.hpp b/include/libtorrent/disk_buffer_holder.hpp
index 0e7e3d94e..5130df8e2 100644
--- a/include/libtorrent/disk_buffer_holder.hpp
+++ b/include/libtorrent/disk_buffer_holder.hpp
@@ -64,11 +64,11 @@ namespace libtorrent
 
 	// The disk buffer holder acts like a ``scoped_ptr`` that frees a disk buffer
 	// when it's destructed, unless it's released. ``release`` returns the disk
-	// buffer and transferres ownership and responsibility to free it to the caller.
+	// buffer and transfers ownership and responsibility to free it to the caller.
 	// 
 	// A disk buffer is freed by passing it to ``session_impl::free_disk_buffer()``.
 	// 
-	// ``buffer()`` returns the pointer without transferring responsibility. If
+	// ``get()`` returns the pointer without transferring responsibility. If
 	// this buffer has been released, ``buffer()`` will return 0.
 	struct TORRENT_EXPORT disk_buffer_holder
 	{
diff --git a/include/libtorrent/piece_picker.hpp b/include/libtorrent/piece_picker.hpp
index 626d527fd..5f726f2f4 100644
--- a/include/libtorrent/piece_picker.hpp
+++ b/include/libtorrent/piece_picker.hpp
@@ -588,7 +588,7 @@ namespace libtorrent
 			// recorded as piece_downloading_reverse, which really means the same
 			// as piece_downloading, it just saves space to also indicate that it
 			// has a bit lower priority. The reverse bit is only relevant if the
-			// state is piece_downloadin.
+			// state is piece_downloading.
 			boost::uint32_t download_state : 3;
 
 			// TODO: 2 having 8 priority levels is probably excessive. It should
@@ -660,7 +660,7 @@ namespace libtorrent
 			// +---+---+---+
 			// this '3' is called prio_factor
 			//
-			// the manually set priority takes presedence over the availability
+			// the manually set priority takes precedence over the availability
 			// by multiplying availability by priority.
 
 			int priority(piece_picker const* picker) const
@@ -774,7 +774,7 @@ namespace libtorrent
 		mutable std::vector<int> m_priority_boundries;
 
 		// each piece that's currently being downloaded has an entry in this list
-		// with block allocations. i.e. it says wich parts of the piece that is
+		// with block allocations. i.e. it says which parts of the piece that is
 		// being downloaded. This list is ordered by piece index to make lookups
 		// efficient there are as many buckets as there are piece states. See
 		// piece_pos::state_t. The only download state that does not have a