234 THE JOURNAL OF BOTANY 
tranverse sections of the three as of growth just given, mag- 
nified 200 diameters ( x 450 diameters in the original work) ; 
fig. 47 shows mercerised Egyptian cotton magnified 200 diameters ; 
fig. 48, Egyptian ais! (brown) unmercerised, also x 200; fig. 50, 
slan 180; fi 
fibres of Sea Island cotton x 1 g. 51 reproduees fig. 48, — 
it is here spoken of as a “good brown Gallini fig. 52 show 
a cotton (white) x 200; ms 53 gives Brazilian akties 
g. 54 reproduces fig. is said to be American 
hi 
race; and lastly, fig. 55 is spoken of as Surat or Indian cotton, 
magnifie i i 
fourteen or fifteen reproductions of microscopic ome rp ; 
pcre pe cotton fibres, = not given uniformly on one scale, 
allow of comparison as to thickness, both of is "aall itself aed 
at its wall; why hey.6 were not made to show a fixed length of 
staple so as to afford means of judging of their degree of twisting 
and other characteristics ; why no attempt was made to represent 
the effects of mercerising, staining, decomposing, &c., of each par- 
ticular fibre; lastly, why each and every one of the staples were 
afford data for the practical grower and the special manufacturer. 
e other hand, if it be th 
known and recognized in commerce “ present similar peculiarities 
t 
cally or photographically, of — slides can serve no good purpose 
The book is needlessly extended by the inclusion of details that 
are either fully un ana on have no direct bearing on the 
structure of cotton in its relation to technical applications, and 
has thereby lost its original oe ens a ee in applied textile 
science. At the same time many r discoveries are either 
wholly ignored or disposed of | in Sha tevreat ssible words. We 
need but allude is Mosenthal’s discovery of the existence 
production of long Staple Upland Cottons. It seems highly 
probable that either environment or specific Ipicpaltien bring this 
oy interesting phenomenon into action. Be that as it 
may, there would appear every probability that mirage possi- 
bilities are in store for the full comprehension of this new dis- 
covery. may be premature ss speculate, but it seems na ils 
he ‘aah that Dr. Bowman set hi mself to accomplish is un- 
doubtedly a difficult one, and though he has rendered a useful 
service by the republication of the main facts of his snes this 
