lines = 'Block Treatment Strength
1 36 7.62 
1 54 8.14 
1 72 7.76 
1 108 7.17 
1 144 7.46
2 36 8.00 
2 54 8.15 
2 72 7.73 
2 108 7.57 
2 144 7.68
3 36 7.93 
3 54 7.87 
3 72 7.74 
3 108 7.80 
3 144 7.21'
con = textConnection( lines )
DF = read.table( con, header=TRUE )
close(con)