662 Report on the Exhibition and 
had the machine been working in the field. The cups which 
take up the seed are each a link of an endless chain, merely 
Fig. 2. — Details of the mechanism of Messrs. Murray and Co.'s 
Potato-jjlanter. 
hooked into each other ; and on the end of each cup is a tail, 
which as the chain turns over the supporting wheels, rises' up 
Fig. 3. — VieiL- of the mechanism of Messrs. Murray and Co.^s 
Potato-planter. 
I 2 
through the bottom of the succeeding cup, thus not only en- 
suring the seed leaving the cup at the right moment, but clear- 
