Kidd was one thing to prevent air being taken as unity. Radiation through Gases. Name of Machines. Maximum. Minimum. Holmes 1,523 1,523 Alliance 1,953 1,953 Gramme (No. 1). 6,663 4,016 Gramme (No. 2). 6,663 4,016 Gramme (No. 1). 6,663 4,016 Siemens.