Introduction
1 All the figures are for conifers and on dry wieght basis.
Major constituents of wood are cellulose, lignin and hemicelluloses. Small amounts of pectic material, starch and other extraneous substances are also present. The ash content of wood seldom
exceeds 0,5%..) (2) o Normal hardwoods and softwoods usually contain
42?2 percent of cellulose. The lignin content of hardwoods varies
from IS to 25%, while in softwoods the range is 25 to 35%. A partly
acetylated5 acidic xylan accounts for 20 to 35% of the wood of hardwoods, with a second hemicellulose, a glucomannan occuring in small
amounts. A partly acetylated galacto-gluco-mannan makes up almost
20% of coniferous wood, but the xylan, .in this case, comprises only
10% of the total wood substance(2).
S3
In a typical wood cell, the primary wall forms an envelope
for the secondary wall, which in turn, encloses the lumen. The primary wall, as well as the intercellular substance, are highly lignified (71 per cent lignin and 14 per cent pentosan in Douglas Fir) ,
whereas the secondary wall is largely cellulose ( over 50% in 8^
and slightly less in layer) , though lignified ( 13 to 25% in
$2 and 11 to 13/j in layer). The hemicellulose content is about
20% in the primary wall, 25 to 30% in the So, and 30 to 35% in the
layer ( 37)—. Regions of. approximately parallel change alternate
with less ordered regions in the secondary wall cellulose. The
molecules in the crystalline regions and to a certain extent, in
the amorphous regions, are held primarily together by a large
number of hydrogen bonds while Van der Waal’s forces probably make
some contribution to the cohesion.

THE PRESENT WORKING PLAN?
The amount of work laid down in the preparation and presentation
of periodic working plans for the forest divisions is impreSsive.Compared
with similar plans in most other countries the East Pakistan working plans
are undoubtedly of a very high standard. They contain a wealth of
forests
not easily found elsewhere.
Working plans in their present form date back to mid 19th or
eVen late 18th century German forestry. The ideas and concepts of Central
methods and techniques developed have served the forestry of several
countries for better or worse for generations. But with the changing
position of forests in national economics, in land use policy and as
producers of raw material for industry,. a more dynamic approach also to
planning in forestry is under way.
This raises the question of working plans in the future East
Pakistan forestry business. In this paper it is attempted to examine how
the working plans of to-day are related to the forestry of to-morrow, and
some tentative lines of development are suggested

.
In Dacca district, the sal forests are limited within
the Dacca sadar North Sub-Division and in the district of
acres in Rajshahi district.
r . *
Sal is found only in the plains of
Dinajpur district,
Division and small patches in Thakurgaon Sub-Division. In
Rangpur district it is-limited within the Sadar Sub-Division.
In Rajshahi district it is limited within the northern portion
Mymensingh these are. limited within the Mymensingh Sadar and
Tangail Sub-Division and in the foot hills of Garo hills. In
these are limited within the Sadar Subof Noagaon Sub-Division. … . –
In area, Sal occupies approximately 64000 acres in Dacca
district, 1,78,890 acres in Mymensingh district, 16,344 acres
in Dinajpur district, 3410 acres in Rangpur district and 1057
Dacca,
I

Where there is sincere desire and a felt need for
improvement, there must be emphasis on research. In U.S.S.R.
there exists such an emphasis visible everywhere. Large number of research Scientists are engaged in productive research activities in many well-equipped research Institutes dealing with problems of logging and wood-based industries.Adequate funds are provided for annual budget of these institutes. They are provided with pilot plants and experimental
farms where they can try and test efficiencies of various
equipments and techniques designed and developed by them.

Family: Elephantidae. ■ -Local name: Hati.
Its long
J
t 77 i-..
ELEPHANT
(Elephas maximus)
The majestic ’elephant which is associated with the
Indo-Pakistan Sub-continent from time immemorial with the
spendour of her princely pageantry is one of the most prized
animal of our forests. Along with the famed Royal Bengal Tigers,
this animal also can rightly claim to be one of the most fabulous
animal of this, part of the country. But unlike the Royal Bengal
Tiger which found its way from northern-cooler country, the
fossil remains prove beyond doubt that the elephants can claim
this Sub-continent as their ancestral home for long 5,00,000
years. Fossil remains of seven species of true elephants and
eight species of mastodons have been discovered in the IndoPakistan Sub-continent. They used to roam around the sub-continent
in the prehistoric days,. One by one they faced extinction and
to-day we are left with .only one species in the whole of the
Sub-continent. East Pakistan having possessed a share of this,
unique species of the;olden days can rightly be proud of.

Month
July, 1969. 27.66” 35.3%
August,1969. 27.97” 37-5% 89°F
September,1969. 12.80” 80. b%
” T H E ENO.”
{for the
(month.
METEOROLOGICAL DaTA FOR THE PERIOD
JULY-SEPTEMBER,1969 RECORDED AT THE
FOREST RESEARCH INSTITUTE METEOROLOG1CAL STATION.
73 °F
92°F 75.9°F
93 °F