[Ship stability calculations re 'Hainaut' and `Pembroke Castle'. 1887. 2 blueprint sheets of calculations re No.155 ship 'Hainaut' and S.S. 'Pembroke Castle'. With accompanying ms. booklets detailing the calculations (using Benjamin's method) re S.S. no.155 'Hainaut' (9 leaves) and T.S.S. no.152 'Bazalgette' (9 leaves). Both booklets bear name 'J. Petree']