By Messrs. Wellington & Bragg, under the direction of Prof. Goess-man, at the Massachusetts Agricultural College chemical laboratory, being the first authentic analysis of this plant on record.

1.000 narts. air drv. contain:

Water,

892.000

Organic matter,

103.638

Nitrogen,

2.120

Total ash,

4.362

Potash,

1.680

Soda,

0.083

Lime,

0.354

Magnesia,

0.159

Iron (Fe2 03),

0.027

Phosphoric acid

0.689

Sulphuric acid,

1.153

Silica,

0.145

- Scientific Farmer.