CHAPTER III.. 34. Electric Images. Riess

34. Electric Images. RIESS

35. Electrographs on Photographic Plate by SANFORD and Discharge. MCKAY

36. Positive and Negative Dust Pictures LICHTENBERG upon Lines Drawn by Electrodes.

36a. Photo-electric Dust Figures. HAMMER

36b. Dust Portrait. HAMMER

37. Electrical Images by Discharge KARSTEN Developed by Condensed Moisture.

37a. MAGNETOGRAPHS. MCKAY

38. Bas-relief Facsimiles by Electric PILTCHIKOFF Discharge.

39. Distillation of Liquids by Discharge. GERNEZ

40. Striæ. Black Prints on Walls of Tube. DE LA RUE and MÜLLER