. Hints and observations for those investigating the phenomena of spiritualism . Fig. 3. Fig. 4 PHENOMENA OF SPIRITUALISM 87 of wood A, B, C, and D are hinged to E,so that they can move freely up and each of these flat pieces of wood asmall piece of helical spring is fixed to the sur-face of the table, and each of the flat pieces rests A ?1 ? 1- 1 c Fig. 5 on the top of the spring. Upon the surface ofthe table and upon the lower surfaces of A, B, C,and D, metal contacts are fixed, which are con-nected together by insulated copper wire andput in the circuit of an electric ball w
. Hints and observations for those investigating the phenomena of spiritualism . Fig. 3. Fig. 4 PHENOMENA OF SPIRITUALISM 87 of wood A, B, C, and D are hinged to E,so that they can move freely up and each of these flat pieces of wood asmall piece of helical spring is fixed to the sur-face of the table, and each of the flat pieces rests A ?1 ? 1- 1 c Fig. 5 on the top of the spring. Upon the surface ofthe table and upon the lower surfaces of A, B, C,and D, metal contacts are fixed, which are con-nected together by insulated copper wire andput in the circuit of an electric ball which isfixed upon the wall. Across the centre of A,B, C, and D a chalk line is drawn. The pres-sure necessary upon A, B, C, or D to cause 88 HINTS AND OBSERVATIONS the contacts to meet and the bell to ring can beascertained by placing weights upon them. Thesitters must be instructed not to place their fin-gers beyond the chalk lines. A good way toadjust the apparatus is to place a small weightanywhere on A, B, C, or D, outside the chalkline, and thus cause the bell to ring. A ver
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Keywords: ., bookcentury1900, bookdecade1910, bookidh, booksubjectspiritualism
