42 



THE OREGON NATURALIST. 



GRANTIA SP. 



This little calcareus sponge was quite com- 

 mon. They vary from one-half to over an 

 inch in length, and are found attached to 

 the spiles by a root like base, usually in 

 clusters. They are of a dirty straw color. 



LEUCOSOLENIA SP. 



CRIBRELLA SANGUINOLENTA. 

 Once in a while one of these bright red 

 starfish come up in the scrape-net. The 

 bright red soon disappears in preserving 

 liquitl and they become pinkish white in 

 color. They have five rays and measure three 

 inches or more in diameter. 



ARP.ATIA PUNCTULATA. 

 This urchin was very seldom met with on 

 the spile?, though it was quite com non in 

 running water on the under sides of the 

 rocks. The color is dark, almo.st black, 

 and the spines are quite long. 

 F. P. Drowne. 

 (To be continued.) 



NOTES ON MIGRATIONS. 





.h.t'^ 



1 



M, 



L 



r 





„J 



To every true student of ornithology there 

 is no more interesting or more pleasurable 

 occupation than that of watching the migra- 

 tions of his feathered friends. 



To many, however, who would desire to 

 '•go about it" in a systematic manner, ths 

 difficulty of hnding an appropriate method, 

 ; resents itself as an all but insurmountable 

 obstacle, and with this view in mind I offer 

 my little experience to "ye editor" and as 

 he was gracious enough to allow it to pass 

 ^'^ his waste basket, I will proceed. First as 

 to our stationery: First and most important, 

 a note book. The most convenient size is 



This is another sponge which is not 



easy to obi am as thf preceeding. Its color 



is the same as tliat of Gianlia. A fair idea 



of how it looks can be obtained fiom the ^n oblong book about five inches long by 



three inches wide, opening at the end, and 

 held together when closed by a strong rubber 

 band. Next a large plainly ruled invoice 



cut 



METRIDIUM MARGINATUM. 



The common Sea Anemone was brought 



up in the scrape-net quite often. It was ^^ook, about the size of an ordinary sheet of 



found attached to Mussel shells and more "legal cap" when it is properly folded. These 



frequently to the spile itself. None of those are all you need as far as paper is concerned, 



found were very large. The rest of your outfit must consist largely of 



When expanded- the Metridium is very enthusiasm. Now of course we know that we 



beautiful but as it draws in its tentacles can find the birds afty where, but the best 



when in the least disturbed, it must he way by far is to select a certain route and go 



carefully approaciied if one would see it in over it twice a day regularly .it, say about 9:30 



its full beauty. When detached from the a. m. and 4:30 p. m. each day. Now in 



spiled if they are placed in some fre^Ji sea selecting a ''route" I have always found one 



water, they usually expand. which if possible takes in a variety of topo- 



