I have it from official sources that during the week ending 22nd April, 88 ships of 237,000 tons, allied and neutral, were lost.

The number of vessels unsuccessfully attacked indicated a great increase in the number of submarines in action.
This means practically a million tons lost every month till the shorter days of autumn come.

By that time the sea will be about clear of shipping.

Most of the ships are sunk to the westward and southward of Ireland.

The British have in that area every available anti-submarine craft, but their force is so insufficient that they hardly discourage the submarines.
The British transport of troops and supplies is already strained to the utmost, and the maintenance of the armies in the field is threatened.