Joshua Rose,

Consulting Engineer

And

Mechanical Expert.

Extra Highly Fitted And Finished

Work A Specialty.

Special Tools, Machines § Appliances

Made To Order.

New Manufactories Put into complete working operation wider personal supervision.

Address,

P. O. Box 5546

New-York City.

Richard H. Buel,

Mechanical Engineer

80 Broadway, New-York,

Offers His Services To

Those Who Buy Machinery,

To enable them to avoid costly mistakes;

Those Who Sell Machinery,

To enable them by tests to prove the correctness of their guarantee;

Those Who Use Machinery,

1st. To enable them to discover defects and mismanagement;

2d. To enable tbem to intrust the charge of the machinery to suitable persons;

Those Who Hire Power,

And

Those Who Let Power,

That they may have the amount accurately determined;

Those Who Invent Machinery

And

Those Who Furnish Capital To Inventors,

That they may have the merits of the inventions carefully investigated;

Those Who Need The Assistance Op A Reliable And Competent Engineer,

In expert rases of any kind.

Sheldon's Auxiliary

Car Seat.

A new Folding Stool, of strong and simple construction, easily attached to the regular seats of street cars. Adds fifty per cent to the seating capacity of the car, and prevents the passage being crowded by passengers standing.

Scientific American Books 100

When in use, as shown in engraving, does not interfere with people already seated, and when out of use can be folded entirely out of the way. Compact, durable, and cheap. Equally well adapted to omnibuses, or for any locality where temporary seats are needed. Patented Aug. 3d, 1875. Address the inventor,

Cevedra B. Sheldon

No. 7 State Street, New-York City.