(_d_) The letter packets between 1 ounce and 4 ounces in weight present some difficulty, since they include a considerable number of long letters, which are sorted at the ordinary letter frames at nearly the same rate as short letters, while the rest are sorted at the packet tables at about the same rate as the heavier packets. The figure should obviously be between (_a_) and (_c_). (_e_) The halfpenny packets also fall into two classes: (1) those sorted as short letters, and (2) those sorted at the newspaper frames. A very large proportion fall into the second class, and the average normal rate of sorting, as in the case of the second class of letter packets, is intermediate between (_a_) and (_c_). TABLE J STAFF. This table shows the relative cost per packet, based on the rates of work (Table H), the cost of an ordinary letter being taken as the unit. ------------------------------------------------------------------------- | | Facing and | | Description of Packet. |Collection.| Stamping. | Storing. | Delivery. | | [631] | | [632] --------------------------+-----------+------------+----------+---------- Ordinary Letter Packets-- | | | | (a) not exceeding 1 oz. | 1 | 1 | 1 | 1 (b) over 1 oz., not | | | | exceeding 4 oz. | 1 | 6-2/3 | 1-1/3 | 1-1/3 (c) over 4 oz | 1 | 6-2/3 | 1-2/3 | 1-2/3 Postcards | 1 | 1 | 1 | 1 Halfpenny Packets | 1 | 1-1/4 | 1-1/9 | 1-1/9 Newspaper Packets | 1 | 6-1/4 | 1-3/7 | 1-3/7 --------------------------+-----------+------------+----------+---------- * * * * * TABLE K STAFF (RELATIVE COST). This table shows the ratios in Table J weighted according to the number of packets in each class.