From, A Country Diary

South Uist (second)

now and again

now and then

seas and then again other seas

and then other waves

seas and then waves

presumably seas

and then presumably in seas

and then in response to seas

and then response to underwater

seas and then underwater rocks

seas and then rocks form at –  

seas and then form at right angles

seas and then right angles to the seas

and then to the oncoming seas

and then oncoming seas

and seas

and then seas

and then seas

and then