80 



The Naturalist. 



their external forms, textures, colours, and markings, but the distinct 

 differences between the lingual dentition and the ribs on the jaws of each. 

 By means of these the reader was enabled to divide the Ariontoe into 

 seven natural divisions. — Henry Crowther, Hon. Sec. 



Yorkshire Naturalists' Union. — A meeting of the council of delegates 

 was held at the Leeds Mechanics' [nstitution, on the I7th of November. 

 The chair was occupied by the new president, Mr. Henry Clifton Sorby, 

 F.R. S. , and there were also present eleven officers and sixteen delegates. 

 The dates, places, and local secretaries for the meetings in 1878 were 

 arranged as follows : — Easter Monday, April 21st, Wentbridge, Mr. Wm. 

 Nelson ; Saturday, May 25th, Ilkley, Mr. B. lUingworth ; Whit Monday, 

 June 10th, Brough, Dr. Parsons ; Saturday, July 13th (date fixed pro- 

 visionally), Settle, Mr. Thomas Tate ; Monday, August 5th, Bishop's 

 Wood, Mr. Wm. Brest ; Saturday, Sept. 14th, Wharnclifie, the local 

 secretary to be ap^Dointed by the Sheffield Naturalists' Club. It was 

 resolved that the date of the annual meeting at Leeds should be left 

 open, and fixed when judged convenient. The Map Committee brought 

 forward their report — " That the map be on the scale of four miles 

 to an inch, and that a transfer from Smith's map, as supplied by Mr. E. 

 Stanford, be taken. That the following points be shown, viz : — 1. By 

 dotted lines, the five vice-counties of Mr. H. C . Watson. 2. By contour 

 lines, the zones of altitude, one line to be drawn at 900 feet and another 

 at 1800 feet, the surface below the first line to be left blank, that between 

 the first and second to be marked by oblique hatching, that above the 

 second line to be hatched in the contrary direction. 3. By dotted lines, 

 the watershed between the chief river basins. 4. By colour washes 

 the following strata : — (1) tertiary, (2) chalk, (3) oolites, (4) lias, 

 (5) trias, (6) magnesian limestone, (7) coal measures, (8) millstone grit, 

 (9) Yoredale rocks, (10) scar limestone, (11) silurian, and (12) basalt." 

 These recommendations were adopted, and the Map Committee was 

 re-appointed, with power to add to their number. It was resolved that 

 the publication of the map for the present be deferred, until the finances 

 of the Union are sufficient to warrant the carrying out of the recom- 

 mendations. It was then resolved that instead of the transactions of the 

 Union being issued in one continuous series, the transactions of the 

 different sections should be kept separate. It was then ordered that the 

 reports of the sections should, when ready, be forthwith printed . Mr. 

 Kell, of Barnsley, introduced the subject of the desirabihty of an 

 exhibition of natural history objects and scientific apparatus during the 

 next year, suggesting that it be held in Leeds during the week of the 

 annual meeting of the Union. It was resolved that the subject be 

 brought before the first general meeting of the Union. Afterwards, Mr. 

 Pogg, of Wakefield, mentioned the proposed establishment of a museum 

 in Wakefield, with a view to obtaining the assistance of the members of 

 the Union at large. — Wm. Denison Roebuck. 



