Airy's miscellaneous personal correspondence on scientific and non-scientific topics, including a great number of obituaries and memoirs of fellow scientists. The correspondents include A.V. Auwers, C.T. Beke, W.B. Carpenter, J. Baxendell, H.E. Roscoe, A d'Abbadie, E. Dunkin, A. Cayley, W.H.M. Christie, C.E. Delaunay, E.J. Routh, H.A.E.A. Fayé, P.G. Tait, G. Forbes, E.J.A. Gautier, B.A. Gould, R. Grant, W. Harkness, J.F.W. Herschel, A.S. Herschel, C. Pritchard, J.N. Lockyer, W. Huggins, J.G.S. Lefevre, U.J.J. Le Verrier, F.N.M. Moigno, R.J. Murchison, R.S. Newall, S.J. Perry, R.A. Proctor, L. Respighi, L.M. Rutherford, B. Stewart and O. Struve. The papers include requests for testimonials; obituaries of C.E. Delaunay and A. de Morgan; a paper on trigonometrical surveying; an account by 'The Athenaeum' of a dinner in J.F.W. Herschel's honour; the discharge of J.F.W. Herschel from the army in 1762; a paper on Hepple's discoveries; a photograph of P.A. Secchi; and reference to wax seals.