Ericsson, John, 1803-1889 · New York : Printed for the author at "The Nation" Press · leaf 632
PI.ATE 11. See Chap. V. l)iA(;i:.vMs siiowiNd tiik JIaihatiox fkom Dikkkkknt Parts(IK TKE Soi.Aij Disc. … Plate 12. See Chap. VI. PAl^ALLACTIc Mechanism fou mkasukixg tiik Lvtensity ok RadiXtio.v FROAI DiFFERKNT PaKTS OF THE SoLAR Dl-Si. Designed uv Joux Euicssux. Coxstkuctkd at New Yokk, 18T5.
