PICTURES FOR THE BUM). 
95 
FIG. 1 .— THE “ PICTURE OF A BUILDING WHICH, WHEN CUT OUT AND 
FOLDED, MAKES THE MODEL SHOWN IN FIG. I A. 
aim is to give merely 
a general idea of the 
shape of the building, 
without attempting 
to show tire smaller 
features, such as 
doors, windows, and 
chimneys. Generally 
speaking, the pictures 
and models of archi- 
j - tecture are types, 
rather than correct 
examples, for exact representa- 
tion of a building needs a 
thorough knowledge of its 
dimensions, which are not 
always easy to obtain. 
Figs, i and ia show the 
u picture ^ and the model of 
an hexagonal building with a 
pyramidal roof — a building with 
a square base, with a horizontal . 
octagon section above it, the 
whole surmounted by an octa- 
gonal pyramidal roof — resem- 
bling closely the Chapter 
House of St. Giles’s Cathedral, 
Edinburgh. Would any amount 
of description so adequately 
convey to the blind the infor- 
mation which the feeling and 
folding of these diagrams 
fig, 2. — - convey ? 
llkofatra's l n the same way a blind pet - 
needle. son may handle the (i picture” 
of an obelisk similar to 
Cleopatra’s Needle, 
which can be easily cut 
out and folded into the 
model shown in Fig. 2. 
Again, to describe Saturn 
and bis rings may not tell 
very much to {he blind 
student, but to put in front 
of him an embossed diagram 
of the planet (Fig. 3) is to 
make it possible for him to 
arrive at some compre- 
hension of the brilliant 
phenomenon. 
Fig. 4 shows a draught- 
board in perspective. It 
will be seen that in addition 
to the embossed lines being 
in perspective, each of the 
dots on the receding lines 
is smaller than its prede- 
FIG. 4. —A DR AUGHT-liOARD I O PEACH 
PERSPECTIVE. 
