33- 



Field A'otes. 



If more precise localisation is desired, as is often the case 

 in g-eological work, the only satisfactory plan is a permanent 

 record on the map itself, either the working" cop)^ or an uncut 

 duplicate kept at home. This can be effected without defacing- 

 the map. Prick in the locality with the point of a pin ; then 

 on the hack of the map draw a small circle round the pin-hole, 

 and write within it the catalogue number or other convenient 

 reference to the note-book in which the observation is fully 

 recorded. If the entries are not crovi^ded, somewhat more 

 information may be set down on the back of the map. 



The division of the map into slips, as here advocated, is that 

 in use on the Geological Survey. The pin-prick device, which 

 I have found very convenient, was given to me, I believe, by 

 my friend Professor Watts. 



LBPIDOPTBRA, 

 Chariclea umbra at Barton-on-Humber. — It may be in- 

 teresting to record that I took a slightly crippled specimen of 

 Cliariclea lunhra at sugar here on the 21st June last. I have 

 found sugar very attractive this summer to common things, 

 moths swarming on the patches night after night. — G. W. 

 Mason, Barton-on-Humber. 



FLOWERING PLANTS. 

 Plants Enlarging their Area. — It is just as well to put on 

 record the spreading of species which up to date have had more 

 or less confined distribution. When I returned to Lincolnshire 

 in 1891 DipLotaxis muralis was only a railway ballast casual, 

 almost unrecognised. It is not in Mr. F. A. Lees' 1891-2 list in 

 White's ' Lincolnshire.' Now it is found on every railway in 

 the county, and has practically got into every place where 

 sidings run, as coal yards, quarries, etc. During the last two 

 years it has become a fairly conspicuous village weed in places 

 not far from railways, as for instance, Howsham and Scunthorpe. 

 It may be found on broken ground by the roadsides, in garden 

 ground, or in thin herbage by footpath sides. Eryslinuin 

 cheiranthoides was first recorded by Rev. J. Britten in his list 

 of 1872 in White's 'Lincolnshire.' When I returned in 1891 it 

 was confined to the arable peaty soils. It is now frequently 

 found on the same broken ground as Diplotaxis iniiralis, but 

 from its greater size prefers garden ground. Both species have 

 appeared in my own little garden. — E. Adrian Woodruffe- 

 Peacock, Cadney, Brigg, 7th September 1905. 



Naturalist, 



