'In Small Measure' contains, as you might guess, quite a number of sonnets. The majority of the poems are written, as the book's subtitle announces, 'with the voice in mind' – some can even be acted out, as they are little dramatic monologues. A small taste of the contents can be found at
http://www.chriswhitby.org.uk.
The book in on sale on Amazon but the UK site currently says it's pre-order and the US site labels it 'out of print' (!), despite both acknowledging that publication date is 1 May 2011.
Anyway, it's available at lower cost and more quickly online from
http://www.openpoetry.org.uk where there is also a rendition of the back page 'blurb'.