THE SPANISH FLY.
1367
- 1 a £• Uiaouju - .
Matter
c ° ll cenH.a?*j* n i . S0 ^^ particles, these are to be digested in ether, and the
,;..j ’’iiinr surface of tlie lip (see Ann.
cn„ CUIUa m solid particles, these are to oe Amu
d '^nctare applied to the inner surface o '1_ ,■ t j )e
“%*e« e X g35 xiii . p . 455). Dr. :Hastings (^*«»*: £ ™
Med. aid Surg. Assoc, vol. i. p. 402.) has P uWl f ^
Xlm fatal Case of inflammation of the alimentary canal and min‘ £ ^? de8lj U symptoms simulated those caused by excessive doses t p at
Jtflie moral and other evidence seemed to negative the suspicion
f? nisects had been taken. of cantlia-
hdp. Ulter ation and Goodness . —The goodness or q . ^ insects,
es PeciS y bC - ’ ec0 o r nised by their odour, alll J ^ commonlv the plaster,is adu'l! } 11Ut , eS ‘ Som etimes the powder, but beeu informed, by
n eN iterated with powdered euphorbiuni. 1 m-ictice, amongst
c tt , ns 't eil acquainted with the fact, that it is a conn 1 pounds
of ) d o lu ‘Agists, to mix one pound of euphorbiuni " itli iouilec 1
o\\dered Spanish flies. , • lono py Thouvenal
(4 ,, ' IP()siti O-\.—C antliarides were analyze!, x lviii. 29), and in
it o * xlvii. 230), in 1804, by Beaupoil [Ibid, xlvui.
’ ey Hobicpiet {Ibid, lxxvi. 302).
Tkouc trial's Analysis.
^atery extract . a7 '°°
alcoholic extract.
* uU&eqnent etherial extract
10-42
-.. ... 2 08
residuum. 50-00
Robiqnet’s Analysis.
1'utal
10000
lllack Benupoil’s Analysis.a C^V'^laWein alcohol,
V «llow “ luble »•» water. 12 94
soluble iu water,
^ee,
lu * mattemcoho]
«‘l, - *1 ’
and ether.’ 1294
, <nl soluble in alcohol and
]>. ether..
l ‘ h '?h^ , " a ’ Sa .' ts '
& oxide of iron
13 9900-13?
1. Cantharidin.
2. Green fixed oil, soluble in alcohol.
3. Patty matter, insoluble iu alcohol.
4. Yellow viscid substance, soluble in
water and alcohol (osmazome f)
5. Black matter, soluble iu water, inso-
luble in alcohol
(5. Yellow matter, soluble in ether andalcohol.
7. Pree acetic and uric acids.
8. Phosphate of lime, and phosphate at'
magnesia.
* ulal -. 10U '°° 1 been found in Cantharides
t *sicS an ^ ar idin {Vesicatorin ; Cantharides-Camp ve sicating t j uc ture (prc‘
Lytta\ittata, aI1 alcohol-
VureU * a11 l 'm blistering beetles, ioprociart , , loVvly crystal! z■ • Ils , >v oper-
v Was!/ imrcolatiou) and set aside: the can .,i C ohol and annual c . ^ iire fusible,hes a ; Ull bywith cold alcohol, and boiling »’* ‘ -.caceous plates, vapours:
f »m,i r aS ,0 'Ws:--U crystallizes in the hr . of m t „ r mU g who^ IV ”u b a yell,nv oil, "'Inch by a stronger '-M is ari(ll „. rfai a coU > u r of
vkmdr n'l'^ully condense into acicular u;sU Is ^ ^ uot ..estop t>^ oil , seems
ll "m s nt kal ‘- bul without any just grounds, t u , s a soli v ...bination
to h e reddened by an acid. Giuelm s °1 "" e but becomes so by iuCipa i
"hi. the^? 1 ' When isidated, it is not solublem. probably het»„ ^^ insec ts
°^ lep constituents of cantharides, tV*e } au aqueous extra cts cantha-
""'tain' re,, dcringit S o. This, then, is the reason ^ ^thand*-, * ^ the fl ies .
Ip 1 ! 11181 '" 1 '’' in so ' ut ' m '- Cold S ' Ur !• some of the other \>' h, ie . and froml is eatii UCk h ean 01 <ly do by the agency ot so ^ h() j, spirit o ' ^ dissolves
1 le lattvv■' s °!uhle in ether, oils (volatile am ’ le d boiling sU 'l’ ; deposits small
t4 'ilh ar T' 1 separates as the liquid cools. ( - °i c l with iss< ve it vath-
"tedium : llie solutiou ia s l,ghtly l-rowu ; « , mur iat»c »c«U lvcd by
“at ch : crystals of cantharidin. Bml.ng uiUw * u CaUl l,andm
“SDig colour ; the solutions, by cooling, 1