ts. The Americans, after having twice repulsed
double their number of the English, were compelled to retreat for want
of ammunition. This was the first actual battle of the Revolutionary
War.

NOTE:--Joseph Warren, a distinguished American general and patriot,
born in Massachusetts in 1741, graduated at Harvard College in 1759.
He was killed at the battle of Bunker Hill in 1775.

LESSON XXI

LETTERS

_Notes of Invitation_.

FORMAL NOTE.

March 8, 1909.

_Mr. Joseph H. Curtis_:--

The pupils of Class A, Public School No. -- most cordially invite Mr.
and Mrs. Joseph H. Curtis to attend the Closing Exercises to be held in
the school on Thursday evening, March eleventh, at eight o'clock.

INFORMAL NOTE.

February 2, 1909.

_My dear Mr. Curtis_:--

May we have the pleasure of your company at dinner Tuesday evening,
February ninth, at seven o'clock?

Sincerely yours,

CHARLES STORY.

406 Elm Street.

INFORMAL REPLY TO ABOVE INVITATION.

February 4, 1909.

My dear Mr. Story:--

I thank you for your kind invitation to dine with you Tuesday evening,
but a previous business engagement makes it impossible for me to be
present. I am very sorry.

Cordially yours,

HENRY CURTIS.

215 Cedar Street.

FORMAL NOTE.

Mr. and Mrs. George H. Baldwin request the pleasure of the company of
Mr. and Mrs. Henry S. Gray on Thursday evening, March fourth, at eight
o'clock.

315 Madison Avenue.

FORMAL REPLY TO ABOVE INVITATION.

Mr. Henry S. Gray regrets that he is unable to accept the invitation of
Mr. and Mrs. George H. Baldwin for Thursday evening, at eight o'clock.

506 Myrtle Avenue.

INFORMAL LETTER.

ROCHESTER, N. Y., March 1, 1909.

My dear Friend:--

I arrived here yesterday afternoon in the best of spirits. I am
staying here at a nice, quiet hotel, and expect to remain here for the
next few days. Rochester is so different from the great Metropolis.
This morning I went to see the University and some other public
buildings. I am delighted with my trip. From here I intend to proceed
to Buffalo and to Niagara Falls. From there I shall write you a much
longer letter.

Please give my kindest regards to all the family.

Cordially yours,

HENRY FIELD.

LESSON XXII

REAPING AND MOWING MACHINES

The rapid settlement and improvement of many parts of our country have
been greatly aided by the invention of various kinds of machinery. The
work of many hands can