<DOCUMENT>
<TYPE>EX-99.77Q1 OTHR EXHB
<SEQUENCE>3
<FILENAME>q771aseriesmgf.txt
<TEXT>
                                SUB ITEM 77Q1(A)

Appendix  A,  dated June 21, 2011 to the Master Amended and Restated By-Laws for
Massachusetts Investors  Growth  Stock  Fund  dated  January  1, 2002 as revised
through August 22, 2007, is contained in Post-Effective Amendment  No. 80 to the
Registration  Statement of MFS Series Trust X (File Nos. 33-1657 and  811-4492),
as filed with the Securities and Exchange Commission via EDGAR on June 30, 2011,
under Rule 485  under the Securities Act of 1933.  Such document is incorporated
herein by reference.



</TEXT>
</DOCUMENT>
