The plethysmograph

✍ Scribed by C.

• Book ID: 103087951
• Publisher: Elsevier Science
• Year: 1877
• Tongue: English
• Weight: 54 KB
• Volume: 104
• Category: Article
• ISSN: 0016-0032
• DOI: 10.1016/0016-0032(77)90618-4

✦ Synopsis

Improvement in Agricultural Analysis.--M. Ad. Cornot

gives a new method of determining the proportion of potash in soils or mixtures. The analysis can be made in a few hours, the determination being as exact as if a much longer time had been employed.

--Comptes Rendus.

C.

Slipping of Locomotive

Wheels.--M. Rubeuf finds that the slipping of locomotive wheels, on down grades, varies between 13 and 25 per cent. There is, consequently, a great loss of fuel, and a great wear of tires and rails, from this cause alone, which is deserving of special study.--Comptes Rendus. C.