Plate, figures 24-34 showing nebulae and stars by Mitchell, B [Bindon Blood] Stoney, and S Hunter Figures 24-34 from plate XXVIII showing 11 nebulae discussed in Parsons' paper. The nebulae are drawn in graphite. Figures 24-25, 27-30, and 34 were drawn by Mitchell, figures 26 and 33 by Stoney, and 31-32 by Hunter. The nebulae correspond, respectively, to numbers 1337, 1385, 1392, 1414-1415, 1441, 1589, 1650, 1713, 1906-1906, 1946, 1968, and 2075 in William Herschel's catalogue of nebulae. Subject: Scientific Instruments / Astronomy Published in Philosophical Transactions as 'On the construction of specula of six-feet aperture; and a selection from the observations of nebulæ made with them'. Received by the Royal Society on 5 June 1861. Read 20 June 1861. [1861]