. Scientific American Volume 87 Number 16 (October 1902) . Asia with the European are larger and heavier birds,stronger on the wing and prettilymarked. In conclusion I would add thatthe great dealer is now busy building azoo at Stellingen, a suburb of Hamburg,which, when completed, will be the mostsingular garden of its kind. It will beunique in the manner in which it is laidout. It is to be opened next , England. A Group Trained After Eighteen Months of Teaching. logical circles, as they were the first species of theirkind ever seen in Europe. Last October his depotwas
. Scientific American Volume 87 Number 16 (October 1902) . Asia with the European are larger and heavier birds,stronger on the wing and prettilymarked. In conclusion I would add thatthe great dealer is now busy building azoo at Stellingen, a suburb of Hamburg,which, when completed, will be the mostsingular garden of its kind. It will beunique in the manner in which it is laidout. It is to be opened next , England. A Group Trained After Eighteen Months of Teaching. logical circles, as they were the first species of theirkind ever seen in Europe. Last October his depotwas enriched by a stud of twenty-eight wild horsesfrom Mongolia. They were caught, as foals, in adistrict some twelve days march beyond Pekin, andafter much trouble shipped to Hamburg, at a cost, alltold, of over |25,000. They were quickly snatchedup by the leading zoos, many of them being sold at?2,500 apiece. Mr. Hagenbeck has conducted some interesting ex-periments recently in the cross-breeding of was made above of a cross-breed of a lion. A Trained Walrus. Dr. Woodburys Collection of Metro-poll tail Bacteria. It will be remembered that a few weeksago the Scientific American called atten-tion to the fact that Dr. Woodbury, Com-missioner of Street Cleaning of New York city, haddetermined to carry out a series of experiments forthe purpose of ascertaining the bacteriological condi-tion of the air of New York city. The first results ofthe experiments have been given to the public. Toone who is not a bacteriologist, the conditions whichhave been found to prevail are startling. At various points, selected to give strong contrasts,gelatine-coated plates were exposed for one-half hourat curb level and six feet above the curb. The micro-organisms thus collected were transferred to the usualculture medium and allowed to propagate. Exactlywhat the germ colonies contain has not beendefinitely ascertained; that they carryenormous numbers of disease germs goeswithout saying.
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