4. The insulation test will consist of 30 minutes’ electrification of the Cable, commencing at the hour, and lasting till 30 minutes past the hour. Readings of the galvanometer to be taken every minute, commencing one minute after contact with the battery, the battery to consist of 40 cells. 5. At 30 minutes past the hour signals will be received from the shore for 10 minutes. Unless the ship wishes to communicate with shore by special speaking instruments, in which case, instead of receiving signals from the shore, ship will put on a C to E current to oppose deflection on shore. Galvanometer to arrest shore attention, and when joined, give the call as in paragraph 9: the ordinary signals will be 5 reversals of 2 minutes each. 6. At 40 minutes, C of Cable will be taken to 10 minutes. 7. At 50 minutes signals will be sent to the shore, and for the ordinary signals 5 reversals, 2 minutes each, commencing C to E. 8. Then a repetition of the same tests to be made and continued without any interval. 9. In case it becomes necessary to speak to shore by speaking instruments, the signal will be given at the 50 minutes, and at the 30 minutes, as in paragraph 5, by sending 8¼ minutes’ reversals, commencing Z to E, and changing over to the speaking instruments, on receiving acknowledgment of call from shore (which will be also 8¼ minutes’ reversals), communication or message to be sent, and when acknowledgment of message and reply (if any) is received, then the system of testing is to be resumed, as if no interruption had taken place. 10. Every 50 nauts. of Cable payed-out will be signalled at the same time (viz., at the 50 mins.), thus, instead of 5 reversals of 2 minutes, 10 reversals of 1 minute will be made commencing Z to E. 11. Every 50 nauts. distance run will be signalled to the shore; the signal will be 2 reversals (commencing Z to E), each 2 minutes’ duration--2 reversals, each 1 minute’s duration, and 2 reversals, each 2 minutes’ duration. 12. Should any defect in signals be perceived, or bad time kept, notice will be given to the shore by signalling at the 50 minutes--thus, by giving 2 reversals of 5 minutes’ duration, commencing Z to E. 13. In sounding, signal will be one current of 10 minutes’ duration, Z to E. 14. Land-in-sight signal will be likewise one current of 10 minutes’ duration, Z to E. 15. Greenwich time will be kept, but a column will be devoted in journals and sheets to ship’s time.