30G A na lyses of Boo hs . 



9. On the Instinct of the Water-Hen. By P. J. Selby, Esq. 



10. Observations on the Strata of Berwickshire and North Dur- 

 ham. By Robert D. Thomson, M. D. 



These relate to the determination of the age of the strata on the 

 Tweed, which have been usually assigned to the New Red Sand- 

 stone formation. The rock to which this appellation has been 

 given lies over magnesian limestone in several places. A section is 

 given of the strata of the Durham coal-beds down to the seam 

 which is at present worked, at a depth of 31 fathoms. A fossil 

 tooth is also described and figured. 



11. Notice of the Skeleton of a Red Deer (Cervus JElaphus) 

 found at Cheswick, North Durham. By J. S. Donaldson, Esq., of 

 Cheswick. 



12. Remarks on the Tumulus at Cheswick. By J. S. Donaldson, 

 Esq. In this tomb the remains of a skeleton were observed, and the 

 head of a brass spear which must have been originally highly 

 polished, but now covered with verdigris. The tumulus was 20 feet 

 high, and the area of its base 50 feet in diameter. 



13. Contributions to the Entomology of Berwickshire. By 

 P. J. Selby, Esq. and Dr. Johnston. 



14. List of the Entomostraca found in Berwickshire. By Mr. 

 William Baird, Surgeon. 



In addition to well known species of this remarkable tribe of ani- 

 mals comprehending Cyclops staphylinus, Cyclops rubens, C. la- 

 cinulatiis, C. vulgaris, C. minuticornis C. brevicornis, Cytltere 

 flavida, C. gibbera, Cypris detecta, C. strigata, C. vidua, C. 

 pubera, C. vionacha, C. reniformis, Daphnia quadra ngula, D. 

 pulex, D. sima, Lynceus sphcericus, L. quadraugularis, L. la- 

 mellatus, L. trigouellus, L. trtnwatus, the author describes fifteen 

 new species, whose characters we shall give for the benefit of those 

 who interest themselves in such researches. 



1 . Cyclops Johnstoni. Nova species. Pools of sea-water at Berwick 

 and Cockburnspath. Body of four segments, tail of six, terminated 

 by two short lobes, from which issue two long setae, fully the 

 length of the body. Superior antennae of about six articulations, 

 stronger than inferior pair. In the male there is a bulla about 

 fifth articulation. In the female they are more slender, more 

 setiferous, and destitute of bullae. Inferior antennae of three 

 or four articulations ; terminated by two or three short setae. 

 All four antennas setiferous at base of articulations. Head beaked. 

 Beneath the antennae are two organs (palpi?) of two articulations, 

 setiferous at base of articulations and at extremities. Beneath these 

 are two organs, which Muller calls hands, of two articulations, ter- 

 minated by a strong curved moveable claw or hook ; and beneath 

 these again, are two double organs, or membres particuUercs of the 

 French authors, each pair consisting of a short strong common foot- 

 stalk, from which arise two flat bodies, the superior of which is the 

 longer, of two articulations, serrated above, and terminated by three 

 short setae ; the inferior, also serrated above, and terminated by three 

 setae, but consisting of only one articulation. From the three inferior 

 articulations of the body arise three pairs of long setiferous feet ; and 



