N. E. GREEN ON CILIARY ACTION IN ROTIFERA. 79 



sembling the Pterodina of Pritchard, was once seen furnished with 

 a wheel-like movement at the end of its tail, so that its loco- 

 motion might be likened to that of a paddle-wheel steamer with an 

 auxiliary screw. By this apparatus at the end of the tail it at- 

 tached itself to the glass or weed, and the rotatory movement then 

 ceased, but recommenced some seconds before departing in search 

 of a better situation. 



We have thus sketched the general characteristics of ciliary 

 action in Rotifera, commencing with those occupying the most for- 

 ward position, and concluding with a singular instance of their 

 presence in the rear. May we not, ere we close, consider for a 

 moment the infinite perfection displayed in their arrangement, and 

 the exquisite adaptation of the means to the end ? 



When these and similar investigations are made in a spirit of 

 scientific research alone, how keen is the enjoyment, how pure the 

 delight ; but if, while contemplating the wonders of the creature, 

 the mind is raised in adoration to the Creator, then indeed is the 

 civp of pleasure full. 



Could the secrets of but one road-side pool be told, oh ! what 

 an anthem would arise to the great Original ; and if our hearts 

 are in tune with nature, we shall ever be ready to join the chorus 

 in praise of nature's God. 



Coming Excursions. 



The Excursions of the Club for the coming quarter are for July 

 9th, Barnet for Totteridge, to meet at King's Cross Station ; July 

 23rd, Bromley for Keston, to meet at Ludgate Hill Station ; 

 August 6th, Thames Ditton, to meet at Waterloo Station, main 

 line ; August 20th, Grays, to meet at Fenchurch Street Station ; 

 September 3rd, East End for Finchley. to meet at King's Cross 

 Station; September 17th, Snaresbrook, to meet at Fenchurch 

 Street Station. In all cases by the earliest train after two o'clock. 

 The Excursion Committee hope that they will be encouraged by 

 the presence of a large number of members. 



g2 



