LECTURES BY EXPERTS.

GENERAL SUMMARY of principal facts, and natural laws, upon the thorough
knowledge of which successful practice is based; and general _resume_
of principles of business which must be familiar to the practicing
engineer.

V.

GRADUATING THESES.

GRADUATION.

Accompanying the above are courses of instruction in higher mathematics,
graphics, physics, chemistry, and the modern languages and literatures.

* * * * *




IMPROVED DOUBLE BOILER.


The operation of boiling substances under pressure with more or less
dilute sulphuric or sulphurous acid forms a necessary stage of several
important manufactures, such as the production of paper from wood, the
extraction of sugar, etc. A serious difficulty attending this process
arises from the destructive action of the acid upon the boiler or