In consideration of the sum of one hundred and fifty dollarsEditorial Note: $150.00 in 1871 is the equivalent of $3,182.11 in 2020. and ten percentAs Written:per cent on all sums received by Helen M. Blood from practicing the instruction I have given her relating to the treatment of disease, I hereby agree to qualify her during the three weeks of her tuition to practice this, so far as the principle is understood, or to refund to her the sum she has paid me of one hundred and fifty dollarsEditorial Note: $150.00 in 1871 is the equivalent of $3,182.11 in 2020..