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abies.

the local

perceived by any other person * Dissection in this case Gen. I.

Spec. VIII. produced nothing striking.

Entasia Dessault, in his treatise on rabies, tells us that he has Lyssa. often met with numerous minute worms in the heads of No those who have died of this disease; and he hence regards such animalcules as its cause. But this writer was who derives a slave to the Linnéan hypothesis of invermination, and from ani

the disease applied the same cause to syphilis, which he also suppos- malcules. ed to be maintained by a transfer of vermicules from one individual to another : and hence proposed to treat syphilis, lyssa, and itch, as diseases of a like origin, with the common antidote of mercury; and gives instances of a success which no one has met with out of his own practice. The cases, however, which he describes had not advanced to the stage of waterdread ; and in all of them he thought it prudent to combine with his mercurial inunction cold bathing, and Palmarius's antilyssic powder.

Vander Brock and, after him, Rahn maintain that the Whether return of pain and inflammation to the bitten part, on the irritatio onset of the disease, does not occur from any virus which proceed

from a has hitherto been lying dormant there, but from the uni- no versal excitement alone. It may be observed, however, seminium,

or from uniin opposition to such an opinion, that this local affection is in most instances a prelude to the general disease, and citement. forms the punctum saliens from which it issues; as though Not from

the last, as the contagious ferment had remained dormant there, and it comwas at length called into action by some exciting cause. monly pre

cedes it and There seems, nevertheless, to be a slight departure gives rise from the general character of the disease in a few cases, to it.

. Variation and particularly in those that are produced by the bite of in feline a rabid cat, whether the latter have originated it, or re- rabies from ceived it from a rabid dog, as though by a passage through canine, the domestic cat the virus undergoes a similar change to that which takes place in the virus of small-pox, when passing through the system of an individual which by which has previously submitted to the influence of cow-pox: the dis

ease seems for, upon the whole, the disease appears to evince some- to be ren

dered some

what less * Medico-Chir. Trans. 1. 132.

malignant.

dormant

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Rabies.

forms.

felina.

Rabies.

Gen. T., what less malignity, to be more disposed to intermit, and SPEC. VIII. Entasia * its spastic symptoms, and especially that of water-dread, Lyssa. to be both less frequent and less violent: so that in re

spect to symptoms we may perhaps mark out the two fol. Hence two distinct lowing varieties : a Felina.

The spastic symptoms less acute Feline Rabies. and frequently intermitting; pro

duced by the bite of a rabid cat. B Canina.

The spastic constriction, for the Canine Rabies. most part, extending to the mus

cles of deglutition, which are violently convulsed at the appearance or idea of liquids : produced by the bite of a rabid dog,

wolf, or fox. a E. Lyssa There is a case of FELINE RABIES, if it be rabies, in Feline Morgagni, and which is copied from him into Sauvages'

Nosology, in which the above distinction is so strongly Example

marked, that the author, in the first edition of his own from Mor

Nosology, was induced to follow M. de Sauvages' mode of classifying it, and made it, after him, a distinct species, though he deviated from the name under which it occurs in this justly celebrated writer, which is that of Anxietas à Morsu* The history of the enraged cat is not given, nor is it certain that the rage was that of rabies. The master of the animal was attacked and wounded both by

its teeth and claws. The symptoms took place four days In this case after the bite, and were confined to spasms of the chest no hydro

without hydrophobia ; nor do these seem to have been of phobia,

great violence, for they are described as “magna præcordiorum anxietas”. Local and general bleedings were

useless : a frequent repetition of the warm bath afforded and, on convalescence, relief; but it only yielded to an ephemera with copious periodical

sweat. The intervals were lunar: for it returned with commence

the full moon for two years: the bitten part, as usual, first ing in the

becoming highly irritable, and the spasms or vehement bitten part, and continuing for two years.

• Classis vil. Ord. 1. v. 6.

gagni.

returns,

SPEC. VIII.

bon on

felina.

Peters:

And hence

sometimes to

anxiety of the præcordia supervening, which were now re- Gen. I. lieved by bleeding. After this period it returned with every fourth full moon for two years more, and then ap

Feline pears to have ceased.

rabies. A few instances of intermission, with a return of pe

A few inriodical paroxysms, produced by the bite of a rabid dog, stances of

periodical are also to be found in the medical collections: of which

returns have Dr. Peter's case, recorded in the Philosophical Transac occurred

among dogs. tions * affords a striking example, the paroxysm returning

Singular infor many months afterwards, severely once a fortnight, or stance reat every new and full moon, and slightly at the quarters,

corded by or in the intervening weeks. Selle, indeed, asserts that he has met with an instance of the same kind of intermis- both variesion among dogs ; and hence where the individual re

ties seem covers, both varieties seem occasionally to subside in this terminate in

this manner. manner. Dr. Fothergill has given two cases of unquestionable Fothergill's.

two exaffection from feline rabies produced by the same animal. amples of afThe cat first bit the maid-servant, and afterwards the

the fection from

c feline rabies. master of the house, about the middle of February. The In the one wound inflicted on the maid-servant remained open and the wound

difficult to irritable from the first, and continued to resist every ap- heal, but no plication for many months; it healed however, at length, constitu

tional symand no constitutional symptoms supervened. The wound ptoms. inflicted on the master healed easily and in a short time, In the other but in the middle of the ensuing June, being four months th

• healed easily, afterwards, the usual symptoms of lyssa appeared, yet with but death comparatively slight and occasional water-dread: inso- ensued. much that the patient, far from resisting the use of the warm-bath, sometimes called for it, expressed a high sense of the comfort it afforded him, and was able at times to dash the water over his head with his own hands. It terminated, however, fatally, and with the general symptoms of distress which we shall give presently t.

In the Transactions of the Medical Society of Lon- Further ildon I, we have a highly interesting case of the same kind,

he wound

from a mark

ed case in the • Phil. Trans. 1745. No.475.

Philosophi+ Neue Beträge zur Natur und Arzney-wissenschaft, B. inl. 118. cal Transac| Med. Observ. and Inquir. Vol. v.

lustrated

tions.

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be in

Gen. I. which proved equally fatal, in seventy-four days from the t E. Lyssa

. time of receiving the injury, and fifty-eight hours from felina. the commencement of the disease; all the symptoms moreFeline

over exhibiting less violence than usually occurs in canine rabies.

madness, with little or no water-dread, and consequently an ability to drink fluids to the close of the disease, though the muscles of deglutition, as well as those of the chest, evinced always some degree of constriction, with occasional exacerbations. The patient was a young lady of eighteen years of age; the attack was made in the month of January, with both claws and teeth, by a domestic cat that was lurking under the bed, and, which though not known to be ill, had for some time before been observed to be wild, and had been roving in the woods. The fate of the animal is not mentioned. The lacerated parts were incised and purposely inflamed by the application of spirit of turpentine. The wounds healed, and the general health of the patient continued perfect till the beginning of the ensuing April, when she was suddenly frightened by looking out of a window, and seeing a mad

dog pursued by a crowding populace. This proved an Exciting exciting cause. She instantly expressed alarm, anxiety, cause clear.

and dejection of mind. In the afternoon she complained of an unusual stiffness in moving her left arm, and its sense of feeling was impaired; she discovered an aversion to company : the irritations of noise, heat, and light, were offensive to her; she avoided the fire, and forbade a candle to be brought near her. The rigidity and insensibility of the affected arm seemed to shoot in a line from the middle finger which had been lacerated, and was accompanied with an acute pain which terminated in the glands of the axilla, where she complained of a consider

able swelling. Yet neither of the hands (for both had tion of the parts origin- been injured) were affected with discolouration, tension, ally injured. tumefaction, or any other mark of local injury, though a

degree of lividity had been observed upon the lacerated part of the finger a short time before the disease made its

Little affec

* Vol. 1, Art. iv. y. 78. 8vo. 1810.

Feline

Wine

Bo

b

ot

little waterdread.

canina.

appearance. She had a painful constrictive sensation in her Gen. I.

Spec. VIII. chest, and the respiration was interrupted by frequent « E. Lyssa sighings. The spasmodic symptoms increased, and at felina. length the whole system, but especially the lungs, was rabies. affected with violent convulsions: the breathing was exquisitely laborious, but the paroxysm subsided in about two minutes. Frequent sickness and vomiting followed : the convulsive spasms about the throat obliged her to Spasms.

about the gulp what she swallowed, and she showed a slight re- throat, but luctance, but nothing more, to handling a glass goblet. litt The pulse was 132 strokes in a minute; the skin was cool, the tongue moist, the bowels open, the thirst urgent, without any tendency to delirium. She was worn out, Fatal ter

mination. however, by sensorial exhaustion and distress, and at last mir expired calmly at the distance of time from the attack already stated.

In the general progress of CANINE RABIES, all the above BE. Lyssa indications are greatly aggravated, and the mind often Canine participates in the disease and becomes incoherent. What- rabies. ever be the exciting cause, the wounded part almost al

signs, and ways, though not universally so, takes the lead in the general detrain of symptoms and becomes uneasy, the cicatrix look- scription ing red or livid, often opening afresh, and oozing forth a little coloured serum, while the limb feels stiff and numb. The patient is next oppressed with anxiety, and depression, and sometimes sinks into a melancholy from which nothing can rouse him. . The pulse and general temperature of the skin do not at this time vary much from their natural state. A stiffness and painful constriction are, however, felt about the chest and throat; the breathing becomes difficult, and is interrupted by sobs and deep sighs, as the sleep is, if any be obtained, by starts and frightful dreams. Bright colours, a strong light, acute sounds, particularly the sound of water poured from bason to bason, even a simple agitation of the air by a movement of the bed-curtains, is a source of great disturbance, and will often bring on a paroxysm of general convulsions, or aggravate the tetanic constriction. The patient is tormented with thirst, but dares not drink; the sight or even

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