130 



Scientific Intelligence, 



[NO, 3, NEW SERIES, 



SCREW PRESS can be driren by Cattle, as the cotton accumulates from the 

 Gin, both being under one roof. The screwing of the cotton into compact bales 

 eaves heavy freight : say £ or § (of a penny) per lb. instead of Id. or l|d. It is 

 described in the " Tropical Agriculturist." 



CLASSING AND SEPARATION —Besides clean and stained cotton, it will 

 be found on observaii n that the worst and heaviest falls immediately at the back 

 of the Gin, containing sand, earth, and dust, while the lighter and better is 

 thrown to some distance back : — the two should not be mixed, but packed and 

 marked separately, — which the Ginner and packer if only hired is apt to collect 

 all in one. When sold in Liverpool the manufacterers often obtain a deduction 

 of 2 per cent, and upwards for sand and refuse. 



FANNER AND BRUSHES.-In the Saw- Gin the brushes sweep the wool 

 off the saws, and the arms of the fanners blow it out of the frame, to a greater or 

 Lss distance. The brushes being of hair get worn out, and when this is the case 

 the cot on is apt to be carried round a second or third time, and passing through 

 the bars of the iron frame it gets entangled. It is therefore of importance to 

 examine the brushes frequently, and to replace new hair. Spanish broom answers 

 ■very well in place of hair. See that it touches and sweeps the teeth of the saws 

 fully, — keep the teeth clean and free from rust and damp. 



Prevent if possible the cutting of the seeds on the saws, as the oil stains the 

 cotton. For this purpose see that the mass of seed-cotton is always presenting a 

 fresh surface to the saws by moving round, which it will do while there is cotton 

 on it, and full enough to pass against the saws and front of the box gently with- 

 out cramming. — Saw and Roller Gins may be had at Faavcet and Co.'s, lion 

 Foundry, Liverpool. 



COTTON OIL.— Oil is got from the cotton-seed of America, and sent to New 

 York for sale, whenever the seed is not so fresh for sowing. Cattle and goats 

 are fond of the seed even three years after cleaning — but it should be singed if 

 any wool remains upon it. To obtain the oil the seed must be first bruised, and 

 then either pressed, or boiled with hotwater, skimmed off 'and evaporated. If 

 pressed preserve the oil-cake for feeding cattle in England — where Linseed oil- 

 cake is worth from £5 to £6 per ton. 



SCIENTIFIC INTELLIGENCE. 



Fall of Meteoric Stones. 



On Saturday the 28th of February last, two large Meteoric Stones 

 having fallen with considerable velocity so as to bury themselves 

 into the earth near the village of Parnallee in the district of Madu- 

 ra, the Hev. Mr. H. S. Taylor, Principal of the American Mission 



