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severe, and as suddenly rcinitting, Were to me farther confirmations.
cancers not apparently proceeding frona externat causes, we stiali find for the most part theyhave been amicted with erratic patias in thelimbs, osten about the loins, sonaetimes in thethi glis, and Other muscular paris. These have commonly been considered by the patienis asmerely rheumatic; but is We enquire more Particularly, we mali find they are Very different. They are not always M orse in the night than the lay. They are not a duli, heaVy, aching patia, and continuat ; but sharp, lancinating, and remittent. They are not much affected by the weather, nor by any obvious causes; and theyfrequently dis appear sor some time; at least, there as a considerable abalement in their vio
severe when the diseasse is mali ing great progressexternalty : and experienced surgeons well knowhow litile bene fit the unliappy patients have toexpedi frona removing the bi east or other dis eased pari, is the patients have been long sub jected to sicli compla intS.It seems not improbabie, but that a starp, corrosive, CancerOUs acrimony may long be perva ling, like electricat matter, certain series of vesteis, arid, when conected in a certain quantity,
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them, the misclites then becomes evident, and advances in proportion to the combination ofiliose causes whicli favour iis progressi. An original disposition to form sucti acrimony, badhealth, anxiety, externat injury, and extremo sensibility of pain and danger, seem to Constitutea part of these causes. There are few physicians, I belleVe, who maynot, on reVieWing many cases Whicli lime occur red to them os anomalous patias in different paris of the body, so as sonae times to Counterseitgouty, bilious, and other internat assed tions of the stomach and boweis, perceive sonae analogybe tween them and the complainis here potnted
Perhaps a cancerous acrimony may have been the basis of s me os these stubboria eviis, and
Mere known to be of a cancerous complexion,
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plaints. It is mitti a view to promote sonae attention to this objecti that I have troubled youwith these reflections. P. S. Since the preceding a ount Was presented to the Society, I have met with two more cases of this palnsul affection , and found uponenquiry, that in both these there had been hard, Permanent, and painful tumours in the breast; that these tumours hecame lesi patias ut Whenthe face was attached ; and that both the one and the other had yielded to the essicacy of this me a cine, the pain and the tumour both ahating.
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To the Medicat Society in London. Gentiemen, OU will excuse me, I hope, sor introdu cing to your notice, an exadi descriptionos the tree that produces the Extraci called Terra Dponica. Hi therio it has rather been guessed at than known, frona when e this substance derives iis origin; the best of our writerson the Materia Medica have given us very litileos certainty concerning it. The figure here exhibited is copied si om adraming taken on the spol, compared with agood specimen transmitted With it, of the leaves,
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slowers, pods, and seed s. The severat paris orthe no ver have been examined by the microscope, and delinealed with great accuracy ; aridevery dolabi concerning the origin of this sub stance will hereby be removed. It will giveyou some satisfaction to know, that sonae of theseeds have vegetated ; and that perhaps We maybe able to propagate the plant, so far as to sendit to our West India istan is, where it will probably stolarissia, and yield iis, by the labour ofour own peOple, an Extraci in greater persectionthan cara be eXpected hom a processi attended withso litile care in the East Indies. Is Ι have tres passed too much on yoiar plan, by introduc ingso many articles of Natural History, Ι must en treat your indulgence for the present: it seemsto be doing sonae benefit to science, to remove ambiguity, and prevent ali possibie mistahe. Your Wortis, Genti emen, pasi into the han is of many ingenio as medicat persons who traverse the moli distant paris of the globe. Instances like these, prompt them to observe; and it is froin the labour of such, that this part os science, a perfeci lino ledge of the Materia Metadita, has hi therio, and must stili derive iis greatest
This account Was dramn VP by an attentiVe, able naturalist, assistant-surgeon to the civit hos pital at Bengat, and transmitted by the learne Iand worthy Lietaten ant-colonet Ironside to
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producing the Terra ' ponis. I93
Extra I of a Leiter froni Me. yames iam, to Lieuienant Colonet Ironside. Dear Sir, 'I Have endeavoured to set in a clear light a part of natural history concerning whicli thelearned have Wrote many inconsistencies. I wissiit had been done by an abier hand ; for a personof my obscurity Will hardly be trusted, when contradicting so many great men. The description was taken Dona the living plant, and I care- fully attended the processe of the manufacturer, and repeated it myself; so that however desective the descriptive part may be, it Will certainlyhave the merit of being strictly true. I am, Dear Sir, Your most obedient servant,
A Description of the Plant from .hich the Terra
HIS plant is called Coira or Caira by the
natives of Bahar Province. It appears to be the fame as mentioned by Cleyerus, Dale's Pharmacologia, p. 27 I. and by
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It is a species of the Mimosa of Linnariis. The root is branching and permanent. The stem is generalty frona three to sive seethigh, and will groW to about one foot diameter, covered with a thicli, scabrous, dehiscent, brownbarii, and branching into a dense, spre ading top,
set dona above twelve feet high; the wood is extremely hard and heavy, the interior pari Varies ' frona a pale brown to a darii red, approaching tob lacti in different planis, but at ways COVeredwith one or two inches thicli of white Cood. The leaves arise frona the young branches alternately, at o ne or two in ches distance, frona four to ten in ches long, and dotably winged; the partiat wings are ne arly two in ches long, and stom fifteen to thirty pairs, having smali tam bili cated glands on the superior pari, placed be- tween the insertioris of the wings, and one larger
curved priclites; in yoUng planis they are strong, in the old planis they are osten flexile, and scarcevisibie. Nature thus partialty guards the youngos severat Mimosas and other prickly planis : itis a mistat en opinion that animais Will not eat the leaves of the Mimosa. Frona the axilla of the leas arises one, sonae times two, dense spities, four or sive in ches long ; the flowers are taesi, white, sessile, With a sim alldcciduous squama under each flower.
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The empalement is of one tubulous pubescent leas, divided at top into five acute patent Paris.. The petat is of the sanae form as the CalyX, but double iis tength, and whiter. There are a great number of capillary fila-ments double the tength of the petat, adheringtogether at the base of the germen : the antherae are simali and almost globular. The germen is ovat, With a stori pedicte, and a filis orna stile as long as the filamenis, With a very smali terminating stigma. The legumen is a bout two in Ches long, lanceo lateii, brown, sinooth, not jointed) and comprefcted with an undia lated thin margin . The pod contains fix or eight orbiculated, hard, compressed, distant seeds, producing a nau
It is one of the most common trees to be metwith on the uncultivaled mountains of Rotas and Pallamow, and frequent in many other paris of this country, in various solis.
The leaves and flowers appear in June; in the day the leaves are expanded, in the nightthey collapse; and aster the procesi os fructification is finissaed, they fali off, and the aculei de-cay. The pods remain untii April sol lowingi When a branch is topped off, the leaves instantly collapse. Froni the interior coloured Wood is produced the Extrael erroneousty called Terra Dponica.
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Preparation of the Extra I. Aster felling the trees, the manufacturer Care fully cuts off ali the exterior white part of the wood. The interior coloured wood is cui intochips, with which he filis a narroW-mouthed Un glaged earthen pol, Pouring Water Upon themuniit he sees it among the Upper chips; Whenthis is half evaporated by boiling, the decoction, without straining, is potared into a flat earthen pol, and botled to one third pari; this is set in a
rated by the heat of the stan, stiri ing it severat
times in the day; when it is redhi Ced to a Con siderable thicliness, it is spre ad Upon a mat or