Bibliography. 147 
4th, Using in the construction of steamboats, boilers, engines, pad- 
dle wheels, and machinery, without proper regard to the relative pro- 
portions which should exist between the different parts of the w 
th. Using inefficient or unsuitable pumping apparatus, and not pro- 
viding for free and open passages for the water to the boiler, and af- 
terwards for the exit of steam to the engines. . 
6th. In not providing a suitable or a sufficient number of safety-valves 
8th. Want of competent and faithful inspectors, clothed with suffi- 
gulate the conduct of engineers, and the manage- 
gement of engines and machinery, with power 
to establish a limit to excessive pressure, within the capabilities of the 
boilers to withstand it. 
. Want of a board of supervising engineers, whose duty it is to 
exercise a general supervision over all boats or vessels navigated in 
a landing, or when the engines are not in motion. 
_ He then proceeds to enumerate the remedies proposed, the most 
Important of which are the organization of a Board of Superintending 
entirely safe in each case, and beyond the control of the 
the boat. Also, a system of signals conspicuous to all passengers, 
hich by an automatic and certain mentor will ann ance, - 
water,” “ water getting low,” or “ water dangerous,” as circumsiances 
i m safe,” or “steam dan- 
be hoped 
n 
sion of a similar character to that proposed, who 
reported to the Franklin Institute at the request of the U. 8. gov- 
erament—Prof, A. D. Bache, reporter. What now remains is to de- 
