HARDWICKE'S SCIENCE-GOSSIP. 



J 53 



mences at Horrocksford quarries, and continues in an 

 east-north-easterly direction by Ridding Hey and 

 Bold Venture Limeworks and then along the north 

 -side of Downham Hall demesne and Twiston lane 

 to the old lead-mines at Skelhorn or Skeleron. 

 Immediately above the Black Limestone is a band 

 of shales containing fossils, of which Fenestellce are 

 the most abundant. The shales at Knunck Knowles 

 by the road cutting going down to Brungerley Bridge 

 near Clitheroe are probably the same." 



On the top of the quarry Ranunculus repens, 

 fcaria, and bufoosus, Bellis perennis, Cerastium 

 zulgatum, Tussilago farfara, Senecio vulgaris, Stel- 

 l-aria media, Potentilla anserina, Anagallis arvensis ; 

 in 1SS7 I gathered a specimen of Erysimum orientate. 

 Leaving the quarry, we enter the Banks, and can 

 wander at our own will among the hills and dales, 

 noticing the bright yellow flowers of the mouse-ear 

 hawkweed {Hieracium pilosella), Primula vulgaris 

 and veris, Leontodon hispidics, Taraxacum officinale, 

 Ajuga reptans, Polygala vulgaris, Veronica chamcedrys, 

 Alchemilla vulgaris, Saxifraga tridactylites, Tri- 



'Fig. 93. — Trilobite (Phillipsia). {All these are very common 

 lossiis near Clitheroe.) 



folium pratense-repens, Potentilla tormentilla, reptans, 

 Lotus cornkulalus, Bunium flexuostan, Chrysan- 

 themum leucanthemum, Plantago lanceolata, media, 

 major, Achillea millefolium, Chcerophyllum temelum, 

 Rosa canina, arvense, Arabis hirsuta, Prunella vul- 

 garis, Medicago hipulina, Linum catharticttm, Eu- 

 phrasia officinalis, Viburnum opulus, Lamium macu- 

 latum, Senecio jacobcea, Heracleum sphondylium, 

 Pimpinella saxifraga, magna, Poterium sanguisorba, 

 Thymus serpyllus, Centaurea nigra, Campanula 

 rotundifolia, Calamintha clinopodhim, Anthyllus 

 vulneraria, Galium verum, Agrimonia eupatoria, 

 Origanum vulgare, Matricaria inodora, Ononis ar- 

 vensis, Scabiosa arvense, stcccisa, Gentiaiiia amarella, 

 Arenaria Serpyllifolia, Erigero7i acris, Lychnis dioica, 

 Stachys betonica, Fraxinus excelsior, Crcetagetis 

 exyacantha, Ribes grossularia, Reseda luteola, 

 Myosotis arvense. Returning the lower way to 

 Brungerley Bridge, the sloe (Prunus spinosa) is very 

 abundant in the hedge ; in a swamp near the river we 

 notice the bright golden balls of the globe-flower 

 {Trollius Europeus), Cardamine pratensis, Ra7iun- 

 culus flamula. Among the waste material at the foot 



of the quarry there is Viola hirta, a very rare species 

 in this district, Cnicus lanceolatus, arvensis, Potentilla 

 fragariastrum, Fragaria vesca, Aspei ula odorata ; on 

 the river bank, Cochlearia officinalis. In another 

 swamp at the other end of the quarry there are a few 

 plants of Menyanthes trifoliata, CEnanthe, crocata ; 

 still keeping close to the river a few plants of 

 Lathyrus macrorliizus, Myrrhis odorata, Lysima- 

 chia nemoricm and Scilla nutans may be noticed. 

 — M. Demain. 



MINUTE ARCELL/E. 



ASSOCIATED with the Hedriocystis described 

 by me in a previous paper, I obtained the 

 minute organisms figured in A and B, and in profile 

 in c. In A I have represented the normal appearance 

 under a -^-inch w.i. of this Rhizopod ; in B the 

 details brought out by using roseine as a stain. The 

 organism glides almost imperceptibly along the slide, 

 or the cover-glass, and generally, though not always, 

 without the emission beyond its periphery of any 

 pseudopodia. Its carapace is hyaline, and only 

 faintly takes up the stain I used. It has no hexa- 

 gonal, punctate, or other" markings ; is apparently 

 structureless ; and is slightly folded in on its under - 



c.r 



Fig. 94.— a, living organism ; b, stained and killed with 

 roseine ; c, side view of organism. 



surface as represented in B and c. This fold is best 

 brought out in stained specimens. I have only in 

 two or three instances found faint blunted pseudopodia 

 projected beyond the margin of the carapace, and 

 having regard to the great number of these forms 

 which I have had under observation, this percentage 

 would be very small. The carapace varies in diameter 

 from about j^-inch to -^jj-inch, while an average 

 Arcella taken at random from the same water 

 measured ^g-inch. The abundance of the organism 

 coupled with its association with the stalked Actino- 

 phryans recently described by me, and its minuteness 

 are my reasons for recording this note. 



W. J. Simmons. 

 Calcutta. 



