Fetch: Pahidestrina jenkinsi in Holderiiess, 141 



of papers and lectures would benefit gfreatly from a scheme of 

 this kind. 



VI. — The food of birds and the influence of birds and 

 animals in distributing- seeds, etc., are other subjects which 

 would require co-operation of naturalists. 



In conclusion, it will be seen that the Committee of Sug- 

 g-estions will fill an existing- gap in the work of the Yorkshire 

 Naturalists' Union by arranging combined action of naturalists 

 to carry out investigations which may from time to time be 

 suggested. It is a feature of scientific discovery of the present 

 time that many new investigations cannot be conducted within 

 the limits of any definite science, but come between two or more 

 of the recognised sciences. So with investigations on the 

 natural history of a county, there are greater possibilities if 

 workers in various fields will combine. Not only will this 

 advance the prestige of the Yorkshire Naturalists' Union as a 

 body of workers, but it will materially aid the other objects of 

 the Union, the bringing together of its members from all parts 

 of the county as brother-naturalists. 



Communications for the Committee of Suggestions should 

 be sent to the Convener, Dr. W. G. Smith, Yorkshire College, 

 Leeds. 



P. F. K. 

 W. G. S. 

 T. W. W. 



MOLLUSCS, 



Paludestrina jenkinsi in WoXderness.—Paludestrina Jenkinsi 

 is now abundant in a tributary of the Burstwick drain between 

 Hedon and Burstwick, three miles from its previously recorded 

 East Yorkshire localities near the Humber. It was not found 

 in this or the main drain in 1902, when a careful search was 

 made for it throughout the district. The possible route from 

 its nearest station on the Humber bank requires a journey 

 through half a mile of salt water and two miles of brackish water 

 against the current, and it has not yet been found at inter- 

 mediate points. Only one carinated specimen occurred among 

 several hundreds examined, and that an empty shell on a caddis 

 case. Many from this locality have flat-topped whorls, and 

 these also show much variation in the relative size of the body 

 whorl and in the shape of the mouth. — T. Fetch, i6th April 

 1904- 



1904 May I. 



