M A Orr and Yearbook of Astronomy

My ‘wants list’ of books includes a couple of titles by Mary Acworth Orr, these being ‘An Easy Guide to Southern Stars’ and her Historical Section Memoir ‘Who’s Who in the Moon’ published in 1938. I am also in need of several editions of the Yearbook of Astronomy, these being 1964, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1975 and 1994. Can anyone help? I have seen a couple of the titles available online at sensible prices although the postage costs were prohibitively high. Please feel free to email me on  stars@starlight-nights.co.uk  if you have any of the above for sale/disposal. Fingers crossed . . .