Index: ext/session/sqlite3session.h
==================================================================
--- ext/session/sqlite3session.h
+++ ext/session/sqlite3session.h
@@ -155,11 +155,11 @@
 
 /*
 ** CAPI3REF: Set a table filter on a Session Object.
 **
 ** The second argument (xFilter) is the "filter callback". For changes to rows 
-** in tables that are not attached to the Session oject, the filter is called
+** in tables that are not attached to the Session object, the filter is called
 ** to determine whether changes to the table's rows should be tracked or not. 
 ** If xFilter returns 0, changes is not tracked. Note that once a table is 
 ** attached, xFilter will not be called again.
 */
 void sqlite3session_table_filter(
@@ -508,11 +508,11 @@
 ** If successful, *pabPK is set to point to an array of nCol entries, where
 ** nCol is the number of columns in the table. Elements of *pabPK are set to
 ** 0x01 if the corresponding column is part of the tables primary key, or
 ** 0x00 if it is not.
 **
-** If argumet pnCol is not NULL, then *pnCol is set to the number of columns
+** If argument pnCol is not NULL, then *pnCol is set to the number of columns
 ** in the table.
 **
 ** If this function is called when the iterator does not point to a valid
 ** entry, SQLITE_MISUSE is returned and the output variables zeroed. Otherwise,
 ** SQLITE_OK is returned and the output variables populated as described

Index: src/vdbe.c
==================================================================
--- src/vdbe.c
+++ src/vdbe.c
@@ -4464,11 +4464,11 @@
 ** change count is incremented (otherwise not).
 **
 ** P1 must not be pseudo-table.  It has to be a real table with
 ** multiple rows.
 **
-** If P4 is not NULL then it points to a Table struture. In this case either 
+** If P4 is not NULL then it points to a Table structure. In this case either 
 ** the update or pre-update hook, or both, may be invoked. The P1 cursor must
 ** have been positioned using OP_NotFound prior to invoking this opcode in 
 ** this case. Specifically, if one is configured, the pre-update hook is 
 ** invoked if P4 is not NULL. The update-hook is invoked if one is configured, 
 ** P4 is not NULL, and the OPFLAG_NCHANGE flag is set in P2.