More could be obtained from the positions in order:-- _Position I._ Object further away from the rock appears to be 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. 1). 6,663 4,016 Gramme (No. 2). 6,663 4,016 Siemens (Large) 14,818 8,932 Siemens (Small, No. 2) 6,864 4,138 Two Holmes's coupled 2,811 2,811 Two Gramme's (Nos. 1 and 2, one at my.