496 Miscellaneous Intelligence. 
The following are the results of the analysis per cent. 
Metallic vob.) i iwel eis HA Ae ee 
Motallic.sipkel, ooo wees as Lee Cee 15.73 
Matallio Ghigo Ll as Sea eee 0.01 
Phosphorus ‘and other undetermined matters, . _--- 3°52 
100.00 
This analysis, although not quite complete, shows beyond doubt 
the meteoric nature of the Los Angeles iron. 
Boston, Sept. 26, 1872. 
2. Tables and a See mcg to Bi eng Nagle Engines 
and Boilers ; by W. ROWBRIDGE, 0 namic Engineer- 
wins. 6 6k periments occupied s SR onths, and were made 
with an engine and apparatus se datiucied especially for the 
An extended list of engines is published, embracing powers 
from 5 horse-power to 350 horse-power, amounting in number to 
he. amounts of water whic iler will evapor te in one hour. 
discussion of the questions of horse-powers of boilers, and 
of boiler ekptosione, ears! valves, &c., is added. new an 
very simple im _ soar to the safety ‘valve, suggested by the 
author, is also give 
e work throughout i is intended to be practical but at the same 
time it adds to existing knowledge of the subjects discussed the 
results of the latest reliable experiments. 
3. Bioxam ae Loupon): Chemistry, Tnorgani ie and 
ganic, with ents. Second Edition (American rps 
Lin indsay & Blakiston, Philadelphia, 1872. 8vo, pp. 
Bloxam’s doesornghd has been a familiar and. alge Saratory 
ecture-room companion for several years. The present edi- 
The text is written in simple language, as devoid as ee e 
oe and designed to lead the learner on by easy steps 
s 5 ina oo chemical principles. The author’s vaiens as & 
