A time scale for measuring the adaptability of school systems with an instrument, scoring method and standards for the measurement of such adaptability,

Mode of access: Internet.

A connected view of the whole internal navigation of the United States; natural and artificial, present and prospective: corrected and improved from the edition of 1826, and much enlarged, from authentic materials, down to the present time. With a sheet map, and numerous engraved profiles ... The map ... is projected, on a reduced scale, from Tanner's ... map of the United States ...

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