District of Conecticut, 88.

BE IT REMEMBERED, That on the twenty-eighth day of September, in the fortyfifth year of the Independence of the United States of America, Samuel Green, (L S.) of said District hath deposited in this office the title of a Book, the right whereof he claims as proprietor, in the words following, to wit:

"Daboll's Schoolmaster's Assistant, improved and enlarged. Being a plain prao tical system of Arishinétích Adapted to the United States. By Natiran Daboll.”

In conformity to the Act of the Congress of the United States, entitled, “An Act for the encouragenient of learning, by securing the Copies of Maps, Charts, and Books, to the authors and proprietors of them, during the times therein mentioned."

HENRY W. EDWARDS, Clerk of the District of Connecticut.

A true copy of Record: Examined and sealed by me,

H. W. EDWARDS, Clerk of the District of Connecticut

LowECOMMENDATIONS.

9.30-30

Yale College, Nov. 27, 1799.

I HAVE read DABOLL'S SCHOOLMASTER'S ASSISTANT. The arrangement of the different branches of Arithmetic is judicious and perspicuous. The author has well explained Decimal Arithmetic, and has applied it in a plain and elegant manner in the solution of various questions, and especially to those relative to the Federal Computation of money. I think it will be a very useful book to Schoolmasters and their pupils.

JOSIAH MEIGS, Professor of Mathematics and Natural Philosophy. [Now Surveyor-General of the United States.]

I HAVE given some attention to the work above men tioned, and concur with Mr. Professor Meigs in his opinion of its merit. NOAH WEBSTER.

New-Haven Dec. 12, 1799.

Rhode Island College, Nov. 30, 1799.

I HAVE run through Mr. DABOLL'S SCHOOLMASTER'S ASSISTANT, and have formed of it a very favourable opinion. According to its original design, I think it well " calculated

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furnish Schools in general with a methodical, easy, and comprehensive System of Practical Arithmetic." I therefore hope it may find a generous patronage, and have an extensive spread.

ASA MESSER, Professor of the Learned Languages, and teacher of Mathematics.

[Now President of that Institution.]