OCR Text |
Show AUTOGRAPH OF PULSE. Physicians have always devoted a great deal of attention to tho study of tho 'pulso because of its force, rapidity and regularity or irregularity tell n great deal about tho patient's condition. This instrument Is very delicate, complicated und expensive, nnd it is called by tho ugly namo of " sphyg-mogrnph." sphyg-mogrnph." You can mnko pulso tracings nt tho cost at a very little labor, and materials mater-ials not worth two cents, which you can find In the house. Theso mate- The Pulse Writing the Autograph. rials nre nothing but a good-sized cork, a Mule stick llko a match stick, n shoo button, a card, n quill toothpick or quill pen mid two pins, j In the top of tho curk cut .out ti square groove or furrow a llttlo wider und deeper than the shoo button, i Whittle down one end of tho stick i nnd fit the eye of tho shoo button on , It. Place this ond of tho stick in tho groove npd thrust a pin through the stick nnd the cork on both sides so that tho stick can turn on tho bins, like a pumphandln. i Cut a long, thin silver of quill, 1 sharpen one end to n line point nnd tnsten the other end to a free end of tho stick with gluo or sealing wax. Cut n broader strip of quilt, some-tiling some-tiling longer thnn tho cork. Pin ono ond of It to tho bottom of tho cork, nnd bend it so thnt you can Insert tho other ond into tho groovo under tho button. Blacken n card In the c.indlo flame. Now you aro ready to tako your friend's pulso nutogrnph. Tho "patient "pa-tient rests his or her wrist on tho cork so that tho button presses tho spot whero tho pulso Is felt. Hold tho card upright on Its edgo and draw along slowly and steadily, keeping keep-ing it in contact with tho point of tho quill. Tho point will traco on tho hlnckoned card a whlto wavy lino, which Is tho record of tho pulso beats, grently magnified, becauso tho pulso acts on tho short nrm of tho match and quill levr. and tho record is written by tho long nrm. Tho bent quill under tho button nets ns n spring nnd raisos tho button each time It Is pushed down by tho throb of tl" pulso, These- pulan trnclngs vnry with tho ngo nnd health of tho porson maklug them, nnd are, thoreibro, as I have eald, a r,ort of nutogruph j -w,iwlir-ii. |