| Description | Regarding their letter, enquiring whether any alteration is contemplated in the terms in which the Royal Society have hitherto allowed the sales of Separate Papers, 'Philosophical Transactions [of the Royal Society]', over five years old, kindly note that it is not intended in future sales to observe the old distinction, a general discount of 15 percent off the published prices being made applicable to all Separates of whatever date of issue. |