Revision of the Bori Working Plan in accordance with the Preli- 

 minary Working Plan Report and with the Inspector-General's 

 letter No. 62-W. P. 26-4, dated the loth July 1908. 



PART I. 



Summary of facts on which the proposals are based. 

 CHAPTER I. DESCRIPTION OF THE TRACT DEALT WITH. 

 ARTICLE i. Name and situation. 



The forest dealt with is that known as the oM Bori Reserve which is that 

 portion of the Bori Range situated to the east of the Sonbhadra River in the 

 Hoshangabad District. The previous working plan included the Dhain Block 

 in the Bori Reserve : in the present plan this block has been excised. 



ARTICLE 2. Configuration of the ground. 



2. The forest is situated in a deep valley about 10 miles long, at the 

 bottom of which at an average elevation above sea level of about 1,450 feet 

 runs the Bori River. This valley is enclosed on the north by a scarped ridge 

 whbh is one of the main spurs of the great Pachmarhi Plateau and of which 

 the highest point, Belkanda Deo, rises to 3,777 feet, and on the south by several 

 minor ridges upto 1,900 feet above sea level, which are divided from one another 

 by the gorges of the Kabra Nishanka and Patakhera Naddis, affluents of the 

 Bori River. 



The hills are often flat topped especially where trap occurs, and the slopes, 

 which are frequently terraced, are unusually steep, sometimes even precipitous. 



ARTICLE 3. Underlying rock and soil. 



3. The entire area is occupied by Gondwana rock with important masses 

 of extruded and interbedded trap. The Upper Gondwanas are represented by 

 the Pachmarhi Group which forms the scarped range bounding the forest on 

 the north as well as several ridges and plateaux running down from the great 

 Pachmarhi Block. This group consists of massive sandstones, greyish or 

 brownish in colour, usually coarse grained and soft, often containing small sub- 

 angular pebbles, and occasionally intersected by hard ferruginous bonds, frag- 

 ments of which are often seen scattered over the surface. In the more level 

 southern portion of the forest Lower Gondwanas appear, being represented by 

 the Motur and Bijori Groups. The Motur beds are composed of thick, course, 

 soft, earthy, sandstone, grey or brown in colour, with bands of red and mottled 

 clays and some nodular limestones. Sandy shales also occur. The Bijori 

 rocks comprise felspathic standstones, flaggy beds, and grey or brown, oc- 

 casionally carbonaceous, sometimes earthy shales. The trap is found in isolated 

 masses at the foot of the northern sandstone range, and there is a consider- 

 able extent of flat topped hills of this rock on both sides of the Bori River. 



4. The soil which overlies the sandstones and shales is light and apt 

 to be very dry, while that which is found on the trap is a stiff loam. _But the 

 soils derived from the one and the other class of rocks are intermixed in most 

 parts of the area and the result is extremely favourable to forest growth. Speak- 

 ing generally it may be said that the growth is best and teak in particular 

 abundant, where trap is the chief rock, and that on the sandstone plateaux, 

 where the strata are nearly horizontal and are close under the surface, the 

 forest is thin and poor. 



ARTICLE ^. Climate. 



5. In general terms the climate may be thus characterised: During 

 the cold weather (NovemberFebruary) cool, often cold and even frosty 

 (December February) between sunset and sunrise, with a bright, warm, even 

 hot sun in the clay time, heavy dews common, prolonged into March, and 

 occasional showers, especia'ly in December, which in some years contribute 

 considerably to the annual rainfall ; during the hot weather (March 1 5th June) 

 hot and dry; during the rainy season (i5th June September) warm, clamp 

 or steamy. 



