THE FIELD MOUSE OF FOULA i8l 



List of measurements recorded in preceding table : 



1. Condylo-basal length. 



2. Occipito-nasal length. 



3. Zygomatic breadth. 



4. Interorbital width. 



5. Cranial width. 



6. Cranial depth, in middle. 



7. Post-molar length ; condyle 



to m. 3. 



8. Condyle to front surface 



of bulla. 



9. Nasal length. 



3. COMPARISON OF EXTERNAL MEASUREMENTS. 



Nearly all the material upon which this contribution is 

 based was collected by Mr W. H. Greenaway at the request 

 of Dr Eagle Clarke, and the latter desires that these services 

 should be fully and gratefully acknowledged. Mr Greenaway 

 found the Mice, which are termed "Hill Mice" by the 

 inhabitants, on rough ground from the foot of the hills up to 

 1000 feet above sea-level, and remarks that it is surprising 

 how they survive the storm.s and trials of the Foula winter. 



Number of Young in Stoat's Family. On 8th May 191 9 



I found a Stoat's nest in a tree-root. I returned in an hour and 

 shot the female carrying away a young one. I then got the nest 

 dug out and it contained ten young ones. There were, therefore, 

 at least eleven in the litter and the female may have carried away 

 one young one before she was shot. In Bell's Quadrupeds the 

 size of a litter is given as about five, and in Lydekker's Handbook 

 to the British Ma/n/nalia as five to eight. James Bartholomew, 

 Glenorchard, Stirlingshire. 



[There are records of as few as two and as many as twelve and 

 thirteen, but the usual number of young is from five to eight. Eds.] 



