ANNUAL REPORT

OF THE

LIGHT-HOUSE BOARD

TO THE

SECRETARY OF THE TREASURY

FOR THE

FISCAL YEAR ENDED JUNE 30, 1891.

Lawrence Scientific School.

ENGINEERING DEPARTMENT.

No.

ANNUAL REPORT

OF THE

LIGHT-HOUSE BOARD

TO THE

SECRETARY OF THE TREASURY

FOR THE

FISCAL YEAR ENDED JUNE 30, 1891.

WASHINGTON:

GOVERNMENT PRINTING OFFICE.

1891.