_Fig. G._ Materies calcarea, quæ siphonem replevit striata, et quidem pars ejus interior, qua centrum orthoceratitis respicit, peripheriæ opposita. _Fig. H._ Facies posterior, peripheriæ propior. _Fig. I._ Pars concava articuli majoris orthoceratitis, in qua diaphragmatis testacei jam crystallisati portiunculæ albicantes _m n r_ conspiciuntur cum siphone transeunte. _Fig. K._ Portio alia orthoceratitis majoris, ejusque facies exterior, cum siphone _g_ ad peripheriam posito. Conspiciuntur his diaphragmata, quæ ab utroque latere, ab articulis procedunt, se invicem conjungunt, et siphonem ab exteriori parte obtegunt. _a_ est testæ satis crassæ portiuncula, qua portio hæc orthoceratitis vestita adhuc est. XCIV. _A further Account of the Effects of Electricity in the Cure of some Diseases[133]: In a Letter from Mr._ Patrick Brydone _to Dr._ Robert Whytt, _Professor of Medicine in the University of_ Edinburgh, _and F.R.S._ Coldinghame, January 9th, 1758. [Read May 11, 1758.] A Young woman of Aiton, a village about two miles from this place, had her right leg drawn back by a contraction of the muscles that bend the knee, so that she had not been able to put that foot to the ground for near a twelvemonth. She had taken the advice of some Surgeons in the country, and had used several remedies to no purpose. At last, hearing of the cure of the paralytic woman, whose case I sent you some time ago, she insisted on being brought hither; and underwent a course of electrical shocks for near two months, receiving every day at least fifty or sixty in the following manner. She sat close by the machine, and grasping the phial in her hand, she presented the wire to the barrel or conductor, and drew the sparks from it for about half a minute. The phial being thus charged, she then touched her knee with the wire, and thereby received such severe strokes, as would sometimes instantly raise a blister on the part. The joint was at last so much relaxed, as that she could walk home with the help of a crutch, tho’ her leg was so weak, that she had very little use of it. After she had continued in this state for some weeks, she was advised to use the cold bath: but that soon brought back the contraction; and I have been since informed that she was worse than ever.