WHITE MUSTARD.

1269

ten,

$ii

,sij_ . °f a cataplasm [which may be made more stimulating by addingb (! , ^ le scrapings of horse-radish root, Z).]). Crumb of bread maya c j f i conveniently' substituted for linseed meal. Vinegar and othereC ^ ^ le f° nna tion of the acrid oil. Boiling water also has an

I<¥ u' U -’ - e ^ ec t- Hence water whose temperature does not exceedjjj_ • is to be prefeiTed for making the mustard poultice. Aetius ( Sermov.^P- 181) was acquainted with the injurious influence exercised bya <ty &ar ° n mus tard; and he observes,—“ Sed et hoc noscendum est: si in(line J n Q cer etur sinapi inefficatus redditur: Acetum enim sinapis vim1’ro **' Several experiments on this subject have been made by* itla ^ e au and Pidoux (Trait e de Therap. i. 692). They found that arile ^ U1 lnat ^ e w ith flour of black mustard and water produced as much'iiie, 111 s ^ x minutes as one made with the flour of black mustard anddij k ar did in fifty. Curiously enough, however, they state that vinegaris diminish the activity of English flonr of mustard. This, perhaps,j) 0( j erf ible to the fact that common English flour of mustard contains(se e i Ju P) )er > the active principle ( capsicin ) of which is soluble in vinegar—The mustard cataplasm is a powerful local irritant. ItSuflj 1 / e xcites inflammation, and, when allowed to remain applied0*tl y l°ug, causes vesication. It proves, in many cases, ath e . Panful application. In various affections of the brain (as inOj,j u ta per and delirium of low fever, in apoplexy, and in poisoning bytrilrn ^ * s a m ost valuable application to the feet and ankles. InH-ja ° nar y and cardiac diseases it is occasionally applied to the chest1^4> exce Pent effects. Dr. Blackall ( Ohserv. on Dropsies, p. 339, 4th ed.nil 1 S P ea ^ s in high terms of the mustard cataplasm, quickened withit 0 ° turpentine, in tvphoid pneumonia. Of course, in all these cases,Ri Ve pe . rates on the principle of a blister, over which its speedy effectUfp 11 a great advantage. It is applied spread on linen or calico.

caution is necessary in its application to persons who are in-fa tio ° C to P ain 5 for if it be continued too long it may occasion ulceO a nd sloughing, though no pain be manifested. Hence its effectsdbe examined at short intervals. In one case death had nearlyto t | ' ( i from the neglect of this caution. Four sinapisms were appliedlowi le Grists and insteps of a female lying in a comatose condition fol-llio Puerperal convulsions. As no manifestation of pain occurred,Hich P ? lic 1 ation was continued for three hours. Sloughing followed,i. 7 q^ had nearly proved fatal (Trousseau and Pidoux, op. supra cit.

Sin'pis atba, Linn. E.D .—White Mustard.

Sex. Syst. Tetradynamia, Siliquosa.

j D.—Flour of the seeds of Sinapis ni^ra_, generally mixed with those of Sinapis alba, anddeprived of fixed oil by expression, E.)

Gen. Char. —See Sinapis nigra.

Ptisip" —Siliques hispid, spreading, somewhat narrower than the

U). beak. Leaves lyrate, and, as well as the stem, nearly smooth

Stem one or one-and-a-half foot high. Flowers large, y r el-!j 4 *> e a.k longer than the pod.

krirdo* Indigenous; in waste places. Cultivated in both fields andleils - Flowers in June.