‘ROYAL BOTANIC'!GARDEN, CALCUTTA. <j 
The:Garden was first divided—onthemap—into squares of ahundred 
feet side, the lines of squares running due north to south and east 
to west. The north to-south lines of squares were denoted by nuinbers 
andtheeast to west lines of squares by letters. Here-and there through- 
out ‘the Garden ‘the intersections:of :the ‘lines ‘bounding those ‘imaginary 
Squares were fixed.as follows. The-intersections‘of the north to-south 
and east t tilines forming part of ‘the ‘boundaries -of ‘four adjacent 
squares were selected, say the intersection of the line between rows g and 
10 with the line between rows J.-and ‘K, AA pit was dug over the exact 
intersection and a stout brickwork pillar built in the pitto hold firmly 
a strong iron post. The latter is’T-shaped- on séction, both the head 
and the leg of the T being -about-7+5-em.(3”) across. Each post is 
about. 7 feet-tong, the lower 3 feet-being-imbedded in -the brickwork 
below .the .ground level and.4 feet projecting above the latter. ‘Every 
post ds so fixed-that the flat surface (the -head of the T on section) 
invariably points due north while the lez of the T. points -due .south. © 
On the flat or northward surface of each postisstamped—not painted— 
deeply into the metal the letters and numbers of the four surrounding 
squares. Thus, .in:the instance.specified the post bears the letters 
J. AS. and ithe Nos.:9, 10, signifying that the post marks the intersection 
of the squares Jg, J10,Ko, Kio. Similar posts, properly lettered and 
numbered, are fixed at intervals-of 200 to.600 feet or more alon g the 
same ‘line b-tween the sows g and .10 of north to-south squares and 
along,the line between the.rows J. and K. of east to west squares. 
These posts are.indicated onthe map by small circles at the intersec- 
tions of the squares where they occur. From a glance at the distri- 
bution of those posts throughout jhe Garden. it will be seen that it 
would be comparatively easy to line out temporarily on the ground any 
required group or -row or rows of squares. Altogether 77 -posts have 
been execited, _. -.- 
The reader .of the foregoing may possibly be inclined to picture.the 
Garden as a rather peculiar spectacle with so many. posts scattered 
about it. There is, however, no,cause for such apprehension for.there 
isreally only one post to about every 3 acres and the sites of the 
majority of them were\selected to be so well screened as to be practi- 
cally invisible, while the posts themselves are painted a light bronze- 
green that blends well with the vegetation. On the other hand, anyone 
provided with the map on which those posts are marked would have no 
difficulty in finding them. Where it was impossible—as on an open 
‘piece of Jawn—to effectively screen a post, the latter was cut off flush 
with the ground and an iron plate bearing the proper letters and 
numbers sunk over it. 
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