'letter-writing and fidgeting'
Here's a linkage I noted earlier (see entries above at July 6 and July 8, under 'fidgety' and 'write my letters'). The two letters he wrote to Kelmscott on this Sunday—to Janey and to his daughters—are both reprinted in May's introduction to the IJ. Morris is here 'fidgeting' about delays brought on by problems with their gear and by the weather. He's anxious to get started on the trek, for the sooner it's over, the sooner he can return home to learn if and how Janey and Rossetti have dealt with the situation that's the prime impetus for the journey to Iceland