Whilst Jethro Tull can be credited as the first to make a seed drill that worked effectively (c 1700) many types of seed drill were subsequently developed that still gave rise to opposing schools of thought between whether dibbling or drilling produced the higher yields. George Winter of Charlton, Gloucestershire made a seen drill with spiked wheels and a wide selection of slotted cylinders that could be fixed to the axle between the wheels to accommodate different seed sizes. In 1782 the Rev. James Cooke patented a spoon-fed drill which proved the basis to the future development of the drill. Henry Baldwin and Samuel Wells developed a longer axle and adjustable wheels which allowed for more dropping cups and coulters. At the end of the 18th Century James Smyth, a wheelwright of Peasenhall, Suffolk devised a method of making the drill coulters individually adjustable to differing widths. This was a type of seed and manure drill that became very popular and was known as the Suffolk drill. By the early 19th Century two types of drill had established themselves – the cup-feed and the force-feed. There were numerous varieties of one-row drill barrows, used for planting peas, beans, turnip seed, as well as ‘˜broadcast’ machines for distribution of small seeds like grass and clover. No other machine had experienced such widespread development in so short a time as the seed drill. Manufacturers could be found across the world making machines based on the same principle.