501 



nortli of the city of Far<jo, and is uow well oquippcd An- work in the lines which it 

 has undertaken. 



Pexxsyi.vaxia Cou.va.k and Stamox.— II. J. Waters, assistant agriculturist of 

 the Missouri Station, has been ajjpointed professor of agriculture aud agriculturist 

 to the station vice T. F. Hunt, 15. S., resigned. 



Texxk.sske Station.— a geographical and chemical study of the typical virgin 

 soils of east Tennessee aud the Cumberland Plateau is approaching completion. C<d- 

 lections of plants representing the Hora of the region from which the soil samples 

 were taken, were also made. Plans have been perfected for testing special commer- 

 cial fertilizers on tomatoes and potatoes grown in pots after the Wagner method. 



I'TAH Station.— In an expc^rinient in which six lots of pigs were fed for nearly 

 9 months on different rations, oats gave the largest gain per 100 pounds. Alfalfa 

 ])rovcd to be chea]> food, though the growth of the animals was slower Avhen it was 

 fed. Pigs fed in the pen made a much slower growth than those allowed to run at 

 large. 



Ik'iJKAU OF AxiMAi. IXDrsTuv. — By the regulations for the prevention of South- 

 ern cattle plague issued by the Secretary of Agriculture .January 11, 1892, no cattle 

 4ire to be transported from February 1.^ to December 1, 1892, to any jiortiou of the 

 United States north or south of an area including the States of South Carolina, 

 (ieorgia, Florida, Alabama, Mississii)])i, Louisiana, Arkansas, Texas, Indian Terri- 

 tory, and i)ortions of Tennessee, North Carolina, and Virginia, except l)y rail, for 

 immediate slaughter, aud under the regulations of the Department of Agriculture. 

 Cattle which have been for 90 days in a certain restricted area in Texas may, 

 however, be transported by rail into Colorado, Wyoming, and Montana for slaughter 

 or grazing in accordance with the regulations made by those States and by this 

 Deiiartment. 



Tiu^ following are among the results of recent studies on animal i)arjLsitos: 



In experiments to determine the sources of infection of American hogs with the 

 thoni-headed worm, v>iiite grubs of the species Laclinostenia fl)T«rt/a were successfully 

 infected with the larvic of EchinorhtjucliKs (jigas, but as the parasite has a larger geo- 

 giaphical distril)ution than this insect the experimenter, C. W. Stiles, sus])ects that 

 L. hirticidn and L. dubia may act as secondary hosts. (For details of this investiga- 

 tion see Amer. Jour. Comp.Med. and Fel. Arch., December, 1S91.) 



Dr. Stiles also proposes a new genus, Myzomimtis (type species IT. scutafiis, Miiller, 

 1809), for Spiroptera scittata, Miiller, a nematode of the epithelium of the (esophagus 

 of cattle. (For a preliminary note on this subject see Amer. Jour. Coinp. Med. and 

 Vet. Arch., February, 1S92.) 



Investigations by the same author lead him to opposi; the theory ad\anced by 

 IJabes regarding the migration of PeniaHtomum inniioidcH in cattle. He regards an 

 active migration through the intestinal wall aud canal as exceptional, while Babes 

 looks n](on it as the rule. Experimental infections with Penfa.stumum prvboncidium, 

 an American species, have been made and the anatomy, histology, and eml)ryology 

 have been worked out. (For details of this investigation and a bibliography of the 

 order LinynatuJa, see Comp. rend., d. 1, Soc. d. B'wlogie, Parin, ISOl. pp. SiS-Sol, 

 and Zeitseh. f. «■(••>•«. Zoiih, 1891, 52, pp. 85-157.) 



Dr. Stiles has also described a new protozoa, Cuccldium biycmhinm. a jtarasite in 

 the villosities of the intestines of dogs. (For a preliminary note on this and other 

 parasites see Bui. d. 1, Soc. Zool. d. France, 1891, pp. 163-165.) 



Dr. C. Curtice has made exi)eriments in breeding the cattle tick (Ixodes boris, 

 Ivilcy), which he places in a new genus as Boophilun bovis. Further observations 

 have indicated that kerosene emulsion may be used for the treatment of cattle 

 infested with this parasite. (For details of this work see Amer. Jour. Comj). Med, 

 and Vet. Arch., July, 1891, and January, 1892.) 



Dr. Curtice has also bred the ox warble aud shown that the common American 

 species is Hypodermu lineaia instead of U. bocis. With regard to the migration of 



