2 
Kidston, R. — Preliminary Note on the Internal Structure of Sigillaria 
mamillaris, Brongt. , and Sigillaria scutellata, Brongt. 
Proc. Roy. Soc. Edin., vol. xxvii., 1907, pp. 203-206. 
Sigillaria mamillaris, Brongt. , Structure of Stele. 
R. Kidston. 
Proc. Roy. Soc. Edin., vol. xxvii., 1907, pp. 203-206. 
Sigillaria scutellata, Brongt., Structure of Stele. 
R. Kidston. 
Proc. Roy. Soc. Edin., vol. xxvii., 1907, pp. 203-206. 
Sigillariopsis Renault. Leaf of Sigillaria. 
R. Kidston. 
Proc. Roy. Soc. Edin., vol. xxvii,, 1907, pp. 203-206. 
Kidston, R. — Note on a New Species of Lepidodendron from Petty cur 
( Lepidodendron Petty curense). 
Proc. Roy. Soc. Edin., vol. xxvii., 1907, pp. 207-209. 
Lepidodendron Pettycurense , Kidston. Structure of Stele. 
R. Kidston. 
Proc. Roy. Soc. Edin., vol. xxvii., 1907, pp. 207-209. 
Manley, J. J. — On the Application of a Differential Densimeter to the 
Study of some Mediterranean Waters. 
Proc. Roy. Soc. Edin., vol. xxvii., 1907, pp. 210-232. 
Densimeter, Differential. 
J. J. Manley. 
Proc. Roy. Soc. Edin., vol. xxvii., 1907, p. 211. 
Density of Standard Sea- Water, Determination of. 
J. J. Manley. 
Proc. Roy. Soc. Edin., vol. xxvii., 1907, p. 214. 
Densimeter, Portable form. 
J. J. Manley. 
Proc. Roy. Soc. Edin., vol. xxvii., 1907, p. 221. 
Densimeter, Abnormal Behaviour of. 
J. J. Manley. 
Proc. Roy. Soc. Edin., vol. xxvii., 1907, p. 220. 
Ocean Waters, Coefficients of Expansion of. 
J. J. Manley. 
Proc. Roy. Soc. Edin., vol. xxvii., 1907, p. 226. 
Mediterranean Waters, Graphs showing Density of. 
J. J. Manley. 
Proc. Roy. Soc. Edin., vol. xxvii., 1907, p. 230. 
Rubber Tubing. — Effect produced upon Glass Tubes. 
J. J. Manley. 
Proc. Roy. Soc. Edin,, vol. xxvii., 1907, p. 220. 
