SCIENTIFIC AMERICAN
A WEEKLY JOURNAL OF PRACTICAL INFORMATION, ART, SCIENCE,MECHANICS, CHEMISTRY, AND MANUFACTURES.
NEW YORK, DECEMBER 28, 1867.
Vol. XVII.--No. 26. [NEW SERIES.]
$3 per Annum [IN ADVANCE.]
Contents: (Illustrated articles are marked with anasterisk.)
*Improvement in Hulling and CleansingHominy
Nitro Glycerin
*Hisert's Adjustable Cultivator Tooth
Remedy for Cold Feet in City Cars
Getting Your Money Back
Patent Claims
Pending Applications for Reissues
The Last Number of Volume XVII
Commencement of a New Volume
A Change at the Patent Office
Obituary
How to Make Intelligent Workmen--Go and DoLikewise
The SCIENTIFIC AMERICAN as a Medium ofBusiness
*Hunt's Improved Steam Packing Piston
The Iron Clads at Sea
*Improvement in Hand Drills
*Improved Method of Securing Cutters on BoringBars
Tides and Their Causes
The Great Hoosac Tunnel
Horse-hair Snakes--Wonderful Transformation
Man Proposes, but God Disposes
Extraordinary Effects of an Earthquake
Recent American and Foreign Patents
Answers to Correspondents
Business and Personal
Manufacturing, Mining, and Railroad Items
Patent Office Decision
Improvement in Hulling and Cleansing Hominy.
Many of our readers well remember when "hulled corn" was astanding winter dish. This was corn or maize the kernels of whichwere denuded of their "hulls" by the chemical action of alkalies,which, however, impaired the sweetness of the food. Hominy is corndeprived of the hulls by mechanical means leaving the corn with allits original flavor unimpaired. Hominy is a favorite dishthroughout the country, but is not always entirely free fromparticles of the outer skin of the kernels. The mill shown inperspective in the engraving is intended to obviate thisobjection.
DONALDSON'S PATENT HOMINY MILL.
The corn is placed in the hopper, A, from which it is fed to thehulling cylinder contained in the case, B. The hulling machinery isdriven by a belt on the pulley, C, the other end of the shaft ofwhich carries a pinion which gives motion to the gear wheel, D.This, by means of a pinion on the shaft of the blower, E, drivesthe fans of the blower. On the other, or front end of the shaft