Volume 39, Issue 15
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Features
Relation Between the Grate Surface and the Heating Surface of Boilers
Magnesian Lime Vs. Pure Lime for Mortar
The Boston Whittling Schools
Progress of Western Mining Operations
The American Prizes at Paris
Our September Export Edition
Novel Applications of Dynamite
A Remarkable Wasps' Nest
The Restoration of Cuba
New Electrical Diapason
Lampblack
Hastie's Water Engine
Reynier's New Electric Lamp
Bauer's Steel Restoring and Refining Compotind
New Breech-Loading Rifle
Simple Telephones
A New Nut Lock
The Torrey Botanical Club
Red Bird of Paradise
The Bearded Saki
Astronomical Notes
Penn Yan, N. Y., Saturday, October 12, 1878. The Following Calculations Are Adapted To The Latitude Of New York City, And Are Expressed In True Or Clock Time, Being For The Date Given In The Caption When Not Otherwise Stated