G2 
Report on the Agricultural Implements at 
principally in Eastern and Northern States. The cotton is 
separated from the seed by the action of a series of rapidly re- 
volving saws, working between ribs. The cotton is fed into the 
hopper, at the bottom of which the saws are revolving ; great care 
is required to prevent accidents, hence a great advantage in self- 
feeders, of which two kinds were shown. Hall's Self-Feeder is 
probably the original ; it consists of a large hopper, with four 
wooden rollers, placed on an incline at the bottom, with spaces 
between which allow dirt, &c, to escape. As these rollers 
revolve, they carry the cotton to one end, whence it passes 
round a wooden roller with numerous bars carrying spiked 
teeth. As the roller is surrounded by a fine wire frame, it 
follows that any dust, &c, is again separated. The cotton is 
thus dropped with regularity on to the cutters without clogging 
or requiring manual assistance. Behind the saws is a revolving 
brush, which collects the cotton from the teeth of the saws, and 
passes it on to the condenser. It will be understood that the 
seed is separated by the saws and passes out of the machine at 
once. The brush, which is of considerable diameter, revolves 
very rapidly ; and in the absence of the condenser, which is not 
universally applied, the cotton leaves the machine in a cloud of 
small particles. The best description of condenser comprises a 
large slowly-revolving cylinder covered with perforated zinc, and 
a small wooden or iron roller working against it above. The 
cotton passing slowly between the two is condensed, and de- 
livered almost in a continuous pile, whilst dust passes away by 
the perforations in the cylinder. Such is an ordinary cotton- 
gin, and it is a very complete machine. Various sizes are made 
according to the number of saws, these vary from thirty to eighty. 
The form is compact. The second description of feeder was 
shown in connection with Brown's Cotton-gin (New London, 
Connecticut) ; it only differs from Hall's inasmuch as the four 
wooden rollers are replaced by a series of fixed and movable 
bars with iron serrated teeth, which carry the cotton regularly 
on to the revolving spiked feeder, whence it is delivered to 
the saws as in the other case. The greatest divergence from 
the ordinary type of machine, was Scattergood's Needle Cotton- 
gin, manufactured by the Remington Agricultural Company, 
Illinois, New York, in which the ordinary saws are replaced by 
circular frames carrying needle-points. These are made of the 
best steel wire with rounded surfaces ; they are made in small 
sections which can be easily replaced, and being covered with 
babbit-metal there is no danger of heating, which is a source of 
anxiety in ordinarily constructed machines. The ribs between 
the needle circles are peculiar in form, and have slightly chilled 
surfaces. The merit of this machine is that it pulls the fibre 
