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<PAGE> PAGE 2
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SIGNATURE ROBERT P. NAULT
TITLE ASST. SECRETARY
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Incorporated by reference is the annual report for Pioneer Mid-Cap Fund, that
was filed on November 26 1996, Accension # 0000706155-96-000020. This is an
attachment for question 77 (c) on the annual N-SAR for Pioneer II. Page 27 -28
of the annual report contains the result of the definitive proxy which is also
being incorporated by reference with this N-SAR filing.
To the Board of Trustees of
Pioneer Mid-Cap Fund:
In planning and performing our audit of the financial statements of Pioneer
Mid-Cap Fund for the year ended September 30, 1996, we considered its internal
control structure, including procedures for safeguarding securities, in order to
determine our auditing procedures for the purpose of expressing our opinion on
the financial statements and to comply with the requirements of Form N-SAR, and
not to provide assurance on the internal control structure.
The management of Pioneer Mid-Cap Fund is responsible for establishing and
maintaining an internal control structure. In fulfilling this responsibility,
estimates and judgments by management are required to assess the expected
benefits and related costs of internal control structure policies and
procedures. The objectives of an internal control structure are to provide
management with reasonable, but not absolute, assurance that assets are
safeguarded against loss from unauthorized use or disposition and that
transactions are executed in accordance with management's authorization and
recorded properly to permit preparation of financial statements in conformity
with generally accepted accounting principles.
Because of inherent limitations in any internal control structure, errors or
irregularities may occur and not be detected. Also, projection of any evaluation
of the structure to future periods is subject to the risk that it may become
inadequate because of changes in conditions or that the effectiveness of the
design and operation may deteriorate.
Our consideration of the internal control structure would not necessarily
disclose all matters in the internal control structure that might be material
weaknesses under standards established by the American Institute of Certified
Public Accountants. A material weakness is a condition in which the design or
operation of the specific internal control structure elements does not reduce to
a relatively low level the risk that errors or irregularities in amounts that
would be material in relation to the financial statements being audited may
occur and not be detected within a timely period by employees in the normal
course of performing their assigned functions. However, we noted no matters
involving the internal control structure, including procedures for safeguarding
securities, that we consider to be material weaknesses as defined above as of
September 30, 1996.
This report is intended solely for the information and use of management and the
Securities and Exchange Commission.
/S/ Arthur Anderson LLP
Boston, Massachusetts
October 31, 1996
