24 Scientific Proceedings, Royal Dublin Society. 



which Porphyrio martinicus has been found there only. In 

 Scotland there are sixteen cases of seven species, of which Rhya- 

 cophilus solitarius has occurred nowhere else in Europe. In 

 England there are eighty-two occurrences, including twelve 

 species, of which one of Gallinago wilsoni, two of Tringa minit- 

 tilla, and three of Gambetta flavipes have occurred in England 

 alone, Tringa maculata only in England and Scotland, and 

 Tringa fuscicollis only in England and Ireland. 



On the continent of Europe, one occurrence each is reported 

 from Heligoland, Holland, Malta, Italy, and Spain ; two from 

 Germany, and five of three species from France. 



In those cases in which I have obtained the monthly date, I 

 find that two have occurred in January, two in March, one in 

 April, six in May, one in June, two in July, five in August, 

 twenty in September, twenty-eight in October, thirteen in No- 

 vember, and five in December. Therefore in autumn, including 

 September, October, and November, we have received sixty-one 

 out of the whole eighty-five occurrences, or more than 71 per 

 cent., besides four cases marked autumn and one winter, to con- 

 trast with only nine in spring. 



Of swimming birds there are 149 instances of twenty- two 

 species. 



From the Faroe Isles we have seven records of three species. 



From the British Isles 103 records of nineteen species, of 

 which thirty-seven of nine species have occurred there only. 



In Ireland there are twenty-four instances of seven species, of 

 which Chen albatus and Anous stolidus have occurred nowhere 

 else in Europe. Scotland is credited with twenty-three cases 

 belonging to nine species, of which Cygnus americanus has 

 occurred there only, and Glangula albeola only in England and 

 Scotland. 



From England are recorded fifty-six cases, including sixteen 

 species. Of these eight cases of four species have occurred no- 

 where else in Europe, and one, Fuligula afjfinis only in England 

 and Holland, and another, jEstrelata hcesitata, only in England 

 and France. 



From the rest of Europe thirty-eight occurrences, belonging to 

 twelve species, are recorded from Spitzbergen, Munsterland, 

 Sweden, Russia, Heligoland, Holland, France (including Picardy) 



