Improved method of detecting and counting bacteria. /

Address inquiries and all applications for license for this invention to NASA Patent Counsel, Goddard Space Flight Center, Mail Code 204, Greenbelt, Maryland, 20771.

A useful method for model-building /

AD 266 222.

Why men fight : a method of abolishing the international duel /

"Lectures ... written in 1915, and delivered in the beginning of 1916."--Pref. to London edition.