December i, 1893.] 



SCIENCE. 



307 



miration society in session, which adjourned only on the 

 arrival of certain older members of my family. On 

 nearly every pleasant day for the succeeding month we 

 caught sight of him on one tree or another in the neigh- 

 borhood, sometimes bearing a nut in his mouth, but 

 oftener darting about as if simply enjoying himself 

 among the variegated autumn leaves. 



Our respect for this fellow-tenant of our grounds was 

 greatly increased one day, when a neighbor, hearing us 

 speak of him, told us how it came about that we en- 

 joyed the pleasure of the little fellow's company. In 

 this neighbor's yard stood a large tree on whose top was 

 a stump left by a decayed and broken limb. One day 

 it was determined to trim up this tree with some thor- 

 oughness. The workmen brought their ladder and 

 began. Soon there appeared upon the scene a much 

 disturbed gray squirrel. Excitement was evident in 

 every movement as the trimming proceeded. Finally 

 the workmen left their work for the day. When all had 

 become quiet, my neighbor was privileged to see a 

 curious sight — one which I cannot remember seeing or 

 hearing described before. It was the removal of a 

 squirrel family to a new home. The old squirrel seized 

 each 3'oung one by the nape of the neck, while the little 

 one threw its tail about the parent's neck, as if to hold 

 on. Then the old one, with its precious freight, 

 descended the tree to a boundary fence, and, by char- 

 acteristic hops and runs, arrived at a hollow tree top 

 between my house and my bam. Two or three such 

 journej's were observed before the whole family was 

 domiciled in the new quarters. 



Whether this burden-bearer was the male or the 

 female, I know not. Perhaps some reader of Science can 



tell me. Indeed, I do not know whether there are a 

 pair of the old squirrels here or not. We have never 

 heen able to observe two together. It is plain that the 

 old squirrel came to the conclusion that its young were 

 unsafe in the former home. Was this an inference from 

 observation of the falling branches ? The mere presence 

 of man could not have been the ground of the conclu- 

 sion, for a group of boys had played about the tree all 

 summer, and after the removal the squirrel's freedom 

 from fear in the neighborhood of human beings was 

 often remarked. Its action in this instance resembles 

 intelligence more than mere instinct. 



Ray Greene Huling. 



Cambridge, Mass. 



St. Louis Limestone in Poweshiek County, Iowa. 

 The St. Louis limestone described by Hall and 

 White, and more recently by Key es (Geol. la. First Am. 

 Rep., 1892) was formerly known to occur only as far 

 north as the eastern border of Mahaska County. Early 

 in 1893 Bain traced this formation completely across 

 the county in the beds of the Des Moines and South 

 Skunk rivers, and in the North Skunk nearly to the 

 northwestern corner. More recently several excellent 

 exposures of this limestone have been discovered three 

 miles above the southern line of Poweshiek County, 

 thus extending its northern limit about ten miles be- 

 yond that previously reported. At one place nearly 

 fifty feet of coal-measure strata were seen to rest upon 

 the limestone. Generally, however, it was immedi- 

 ately overlaid with drift. Many fossils, in a fine state 

 of preservation, were obtained from the marl which 

 capped the rock. Arthur J. Jones. 



Iowa College, Grinnell. la. 



Horsford's Acid Phosphate 



Is the most effective and agreeable 

 remedy in existence for preventing 

 indigestion, and relieving those dis- 

 eases arising from a disordered 

 stomach. 



Dr. W. 'W. Gardner, Spring- 

 field, Mass., says, "I value it as an excel- 

 lent preventative of indigestion, and a 

 pleasant acidulated drink when proper- 

 ly diluted with water, and sweetened." 



Descriptive pamphlet free on application to 



RuMFORD Chemical Works, Providence, R. I. 



Beware of Substitutes and Imitations. 



For sale by all Druggists. 



Exchanges. 



[Free of charge to all, if of satisfactory character. 

 Address N. D. C. Hodges, 874 Broadway, New 

 York] 



B'^or Sale.— A very fine telescope, length extended, 

 twenty-five inches, closed, seven inches. Powei 

 twenty-five times. Good as new. Cost $25.00, 

 Will sell for the best cash offer. B. S. Bowdish, 

 Box 165, Phelps, N. Y. 



For Sale or Exchange for last editions of Standard 

 Works on Vegt-table Anatomy or Physiology: 

 Practical Zoology, Marshall & Hurst; Elements' of 

 Embryology, Foster & Balfour; Zoology, Macalis 

 ter; Guide to the Study of Insects, Packard; Geolog 

 ical Studies and Shall We Teach Geology, Winchell 

 Also have duplicates of Experiment Station pub 

 lications which would like to exchange for any nt 

 in my file. L. R. Jones, Burlington, Vt. 



For exchange. — Skins of Aegialites nivosa, Ereu- 

 netes occidentalis, Aunnodramus Arldingi. A, 

 rostratus, Chamara fasciata hensbawi, etc., for 

 native or foreign skins with full data. Send lists, 

 A. W. Anthony, 2042 Albatross St., San Diego, Cali- 

 fornia. 



I have a Beck New National monocular microscope, 

 accessories, microtome, mounting material and a 

 large number of fine slides. Will exchange the 

 whole or in part for a first class type- writer or 

 photograph outfit. A. C. Gruhlke, Waterloo, Ind. 



Offered sidebloom eggs of Bulimus oblongus and 

 exotic land and freshwater shells in exchange for 

 Helices not in collection. Send lists to G. K. Gude, 

 5 Gresbach Road, upper Holloway, London, Eng- 

 land. 



Would like to exchange 100 specimens of Canadian 

 Indian Relics for a photo outfit. E. J. Waters, 7a 

 Hoffman St., Auburn, N. Y. 



A GEOLOGIST thoroughly conversant with the 

 '^ geology of the Southern States desires an en- 

 gagement. Has complete knowledge of the eco- 

 nomic geology of Iron, Coal, Lignite, as well as 

 Clay and Kaolin. Five years' experience with 

 Geological Surveys. Address K., 509 West Sixth 

 Street, Austin, Texas. 



AX/ANTED.— Tuckerman's Geneva Lichenum and 

 '' Carpenter on the Microscope, Wiley's In- 

 troduction to the Study of Lichens. Slate price 

 and other particulars. Richard Lees, Brampton, 

 Ont. 



\\/ANTED.— Icones Muscorum by W. D. Sulli- 

 •'' vant, with or without Supplement, but both 

 preferred. Address, stating price and condition 

 of books, Dr. G. N. Best, Rosemont, N. J. 



WANTED.— A copy of Mascart & Joubert's Les- 

 sons in Electricity and Magnetism, Vol. I. Ad- 

 dress R. W. Clawson, Vanderbilt University, Nash- 

 ville, Tennessee. 



pHEMIST.— Graduate of a polytechnical school, 

 *— ■ and studied photographic chemistry in Ger- 

 many and Austria. Situation teaching or in ana- 

 lytical or experimental laboratory. M. B. Punnett, 

 Rochester, N. Y. 



\A/ANTED.— A recent college graduate to assist in 

 '* editorial work on Science. Those seeking 

 large emoluments need not apply. N. D. C. 

 Hodges, 874 Broadway, New York. 



