The sun. [volume] (New York [N.Y.]) 1833-1916, 1910-03-13

terated with colorad contour and ground
wood. Here Is a sample ~ such an adul-
terant composed principally IT pow dered
aAwdust. the fhrous character OF The wood
DISCRIMINATING IL clearly from ths pepper.
The microscops 10 4 thoroughly en-
Gent detectoT Of adn4feration IN the cases
OF coffee and che, olate preparations.
In the former roasted chicory. cereals
and peas. and N the latter starchy mate
rails and cocoa shells, are sometimes used
for adulteration
Coffee being the seed Of a plant has
q structure which - very different from
chicory. which u q root The cell walls
Of coffee have q Characteristic beaded
appearance which - present IN but te~
other seeds Even after roasting and
grinding these leads can be casilv dis
tingulshsd. whiis chicorv contains sap
vessels bv Nhiyh u can Re deteCted
-Cnocoiate and cocoa are made from
the seeds % rhe cocoa plant. 70 wis b for
eign starches are sometimes added Prom
the oest grades - these products the
shells arr removed. bYf N the poorer
grades the shells are lett and even add
tional shells added Coca beans con-
tain naturally a considerable amount
Of -tarCh our the grains are small IN size
and are easily distinguished from The
starChY adGlteTants such a. corn and
wheat hours or potato corn and arrow
root starChes T have examined sn arti-
Hr.al chocolate coating which was com
posed Of cocoa smells. cornstarch. beef
talloN aud 40 nh mineral matter prob
ably used a. p ColorIng substance.
ARTIFICIAL lel'i@s Jams and some kinds
Of coufccfjOns arr often 'ufrkered with
g-liffne starch. ag1r-agir. gum TRACE
CantA aLi Eg7H ara pic som" ~ these
ar q Hcul q den " anon vhIl" others
ran he readily d'.r t"l.
.Agav-aEar = a product made from
osvtsIr s-iweeJls and usually contains
sn'',s q microscopic sea .reiturs- The
presence Of starch t- easily disr"rued
Gum ira gaalutl and >"rl" other Ike
gums ner allowed - swell IA water
Ur,d 80 "a distinctive structure, which
i DISCLOSED under IN" microscope even
in such products a. '''s nr'dW and marina
ladies
Her. i a sample ~ thIckcncr for cream
compg-ad ~ ,'0Tnstar,h aud poW dvrei
gum t,pgacanth IT, this case h. corn
~iar,n appears A. the angular particles,
Will. the -tTalKy Substances near 10
entire OF the field are ~ 'len fragrn"nts
- The gun
\ some Nhlt CtiTIouS ~. q the micro
-cot.s, a. q food ietrufor .. ~ the deter
rniEat' ION u the flower from which honey
B., made THIS to " TACTICAL value ~
the analysis VI hOn"y~ pnTpurting 20 -
from certain h1wc"-.
Although bes,- viii almost invariably
Gather honey from several kind- ~
flowers -umerIm-~ IN" or another of
tne-. pTcto-..uatcs 20 such an extent
a. q. trupart q ti-inCtlv - color aui taste
enough 10 allow the honey to be- caIed
i,v thai uarIc With the aid - the micro
scop.. q - easily slsCegJained whether a
.J-caIled appie blossom honey or an
orange blossom honey II really largely
derived from the source claimed. TINS
result j. due to the fact that the micro
scopp -hov~ clearly tie different forms
% t,o,l.u 80 thc various plants from which
IN. !,..,.- derive the honey.
. Asir,kng speCtmeu q food aduiteratiOn
IN Mr.. Howard CoilsCtion ~ an artificial
l. mon .lICr or TAtneg. a -.nail pOrIton
~ n mounted for microscope purposes
The material used for thIS Was agar agar
and the instrument revealed beautifully
the curious formations Of the minute
diaf,.n .hssiiz