428 Field Xofc. 



again miniatures of the same nature, with moss covered hollows 

 and grey stones bright with ferns, so that I am constantly 

 reminded of Kingsley's song : - 



" Clear and cool, clear and cool. 



By laiig'hing' shallow and dreaniinjj pool. 



Cool and clear, cool and clear, 



By shininjjf sliing'le and foaminj^ weir ; 



Under tbe crag where the ousel siiiy-s. 



And the ivied tower where the ( luii<li Ijill rintfs, 



I'luk'filed tor the iindefiled, 



Play by me, bathe in me, mother aiul child. " 



DIATOIWS. 

 Diatoms at Askern. — Mr. M. H. Stiles, in addition to- 

 his list (' Naturalist," April 1906, pages 128-129), I'ecords the 

 following species as found in the Bog Pond at Askern, on 

 the excursion of the \'orkshire Naturalists' Union on July 12th, 

 1906 : — 



Acini a utiles cxilis Kulz. doiiiphoiiciiia iiiontanuni var. rotu- 



lunccohita Breb. ' iiiiiftifiiiii. 



Corroiieis pcdinilus 'Ehr. Xdi'iiii/d rat/i»S(i Kiitz. 



,, phtcentnla Ehr. ,, cuspidata Kulz. 



Cyclotella uiencg/iininiui Kutz. ,, ohloiiira Kiitz. 



C'yiiiafoph'urn soleci Rreb. ,, snilpta Klir. 



CynihcUa cviiihifonnis \ar. parva * ,, Kciiihardtii vai'. i(ni- 



\\'. Sin. cilioi: 



Dentinda elegans Kiitz. Xdzschia linearis W . Sni. 



^ Fragilaria brevislriata Grim. ,, sigiiioidea W . Sni. 



Gnni phone ma inlricatuin Kutz. Svnedra idnn var. spleudens. 



In addition to these, the writer found on the same excursion, 

 in gatherings taken from Askern Pool and some of the adjacent 

 streams and ditches : — 



Aclmanllies iiiicrocephahi Kutz. Hantzschia ainphioxys\A\\ 7'ivax.. 



Cynibella affinis Kutz. .\'(i7'inila ainbigiia Ehr. 



,, aniphiceplutla Xact;". ,, anipliishiena Hor\'. 



,, cistida Ilempr. ,, cryptorepliala Kulz. 



,, Pllire'ibergii Kutz. ,, elliptica Kutz. 



,, Helvetica Kulz. ,, exilis Crun. 



,, laiiceolata Ehr. Xitssrliia diihia W. Sm. 



,, hevis Xaeg-. ,, palea var. teniiirostris. 



,, obtiisa GrciX. ,, verniicidaris (Kulz.) 



Kiicyaneina ventricosuni Kutz. Crim. 



Epilheinia gibbernla\A\-. nipestris. Staitioneis pheniceuterou IChr. 



Eiinotia <irciis V.hv. Syiiedra ainphicephala Kulz. 

 yragilaria I'irescens Ralfs. ,, radians (Kutz.) Crun. 



(1it))ipliotieina pat~i'idi<ni Kulz. I'aidtenrckia vulgaris \' . II. 

 — R. II. Piiii.ii', Hull, NoMitiber i9i)(). 



* .New riHiirds lur \'<irkshire. 



Naturalist, 



