JULT 8, 1904.] 



SCIENCE. 



53 



segments. In Argeia, therefore, the ' lames 

 pleurales ' are in two parts, an anterior and a 

 posterior part, and it is not exact to refer to 

 these thoracic processes, which arise from the 

 posterior portion of the segments, as the 

 ' lames pleurales ' of the segments. 



In conclusion, I wish to state that I am not 

 more willing to accept the ' loi naturelle ' than 

 I was to accept the ' hypothese ' postulated by 

 Giard and Bonnier until its confirmation has 

 been maintained by facts. Professor Giard 

 states that I have not carefully studied Argeia 

 pugettensis coming from different hosts. I 

 hope soon to give in greater detail the results 

 of my researches on this form and on 

 Bopyroides hippolytes. 



BIBLIOGRAPHY. 



(a) BoNNiEE (J.). 'Contribution a I'Stude dea 

 Epicarides. Les Bopyridse.' Travaux de 

 la station eoologique de Wimereux, VIII., 

 1900. 



(6) GiAED (Alfred) and Bonnier (J.). 'Pro- 

 drome d'une monographie des Epiearides du 

 golfe de Naples.' Bull, scient. Fr. et 

 Belgique, XXII., 1890. 



(c) MiJLLER (Fritz). ' Bruehstucke zur Natur- 

 gesehiehte der Bopyriden.' Jenaische 

 Zeitsch. f. Naturw., VI., 1871. 



{d) Richardson (Harriet). 'Results of the 

 Branner-Agassiz Expedition to Brazil. Pt. 

 2. The Isopod Crustacea.' Proc. Wash. 

 Acad. Sei., II., 1900. 



(e) Richardson (Harriet). 'Contributions to 

 the Natural History of the Isopoda.' Proc. 

 U. S. Nat. Museum, XXVII., 1904. 



Harriet Eichardson. 



SPECIAL ARTICLES. 



AN ACCOUNT OP THE PRELIMINARY EXCAVATIONS 



m A RECENTLY EXPLORED QUATERNARY CAVE 



IN SHASTA COUNTY, CALIFORNIA. 



In the summer of 1902 the writer was com- 

 missioned by the department of anthropology 

 of the University of California to search for 

 Quaternary caves in the belt of Carboniferous 

 limestone exposed along the lower portion of 

 the McCloud River. The work of that year 

 led to the exploration of the Potter Creek 

 cave which has already been described in 

 Science.* 



*Wm. J. Sinclair, Science, N. S., Vol. XVII., 

 No. 435, pp. 708-712, May 1, 1903. 



During the summer of 1903 further explora- 

 tions were carried on by the writer under the 

 direction of Professor J. C. Merriam, in the 

 hope that caves of somewhat later age might 

 he discovered. As a result of this work cave 

 deposits containing remains of Quaternary 

 mammals have been found in several new 

 localities. Of these, the cave containing the 

 largest quantity of remains is so situated with 

 relation to the topography of the region as to 

 indicate that it is younger than the Potter 

 Creek Cave. To this cavern the name Samwel 

 cave has been given, owing to the presence in 

 it of a pool known among the Wintun In- 

 dians as ' Samwel,' or spirit water. An Indian 

 legend to the effect that a Wintun maiden 

 had fallen into a very deep well in the cave 

 while searching for water led to the most im- 

 portant discoveries made here. 



The Samwel cave is situated on the east 

 bank of the McCloud Eiver and about sixteen 

 miles above its mouth. The entrance is on a 

 Quaternary river terrace. Measurements 

 kindly furnished the writer by Mr. J. S. Cil- 

 ler, who visited the cave with him, show this 

 terrace to be 355 feet above the McCloud 

 River and 1,505 feet above sea level. The en- 

 trance is a large, low arched vestibule leading 

 to a series of galleries which widen again to 

 large chambers. 



The first chamber is about twenty-five feet 

 long. At the southeast end a vertical fis- 

 sure about thirty feet high extends twenty 

 feet into the wall. The top is arched over 

 and the bottom is filled with a deposit of 

 clay and stalagmite containing many bones. 

 The highest point on this deposit is near the 

 middle of the fissure. Prom this place it fans 

 out, fills the farther end and slopes dovm to 

 the floor of the main chamber where it spreads 

 out. It has been excavated to the depth of 

 four feet, and is seen to be composed of sev- 

 eral strata. The whole is covered by a stalag- 

 mite capping varying considerably in thick- 

 ness. 



Many remains were taken from this deposit. 

 They include limb bones, vertebrae, teeth, 

 jaws and a large number of splintered bones. 

 In the deposit on the floor of the chamber, 

 near the entrance of the fissure, a dis- 



