. The Oölogist for the student of birds, their nests and eggs . of the appearance ofa small type collection arranged in thismanner. Paul G. Howes. Take Care of Your Calipers. If you have a pair of calipers do notallow them to become wet or to be leftin a damp place. If you do, you willfind that in a short time they will rustor tarnish. To prevent this, get someThree-in-One oil. Place a few dropson a cloth and rub your calipers thor-oughly. Do not pour the oil directupon them, for a thorough rubbing issufficient. The oil fills the pores ofthe metal and thus forms an impervi-ous guard against ru
. The Oölogist for the student of birds, their nests and eggs . of the appearance ofa small type collection arranged in thismanner. Paul G. Howes. Take Care of Your Calipers. If you have a pair of calipers do notallow them to become wet or to be leftin a damp place. If you do, you willfind that in a short time they will rustor tarnish. To prevent this, get someThree-in-One oil. Place a few dropson a cloth and rub your calipers thor-oughly. Do not pour the oil directupon them, for a thorough rubbing issufficient. The oil fills the pores ofthe metal and thus forms an impervi-ous guard against rust or tarnish. Itis also well to wrap them in tissuepaper when you will not use them fora length of time. Ralph R. Wilson. Unusually Large Set. On the 6th of November, 1915,three men were hunting in the Kas-kaska River bottoms about sixteenmiles northwest of Odin. They wereclimbing trees which they thoughtmight be a coon den and they claim-ed to have found one which was fullof eggs. To verify this statement,they delivered to me a small bucket THE OOLOGTST 4S. oO w I ■ao. rt o Q. oO o Q. h THEJ OOLOGIST containing nine eggs of the BarredOwl, claiming they were all in one treewhen they found them. I found uponunpacking the eggs that they undoubt-edly were Barred Owls. They all ap-pear to be about the same size andshape, while some were very badlysettled and dried while others contain-ed some liquid matter. All appearedto have been fresh as I found no signsof embryo. One very noticeable thingwas an unusually hard shell and quitea little thicker than the usual Owl egg,I took the drill and twirled it roundand round until I got tired and hardlyleft a mark, so I sharpened the pointof my pocket knife and scraped untilI could see liquid oozing out or smellthe delicious perfume; then I triedthe drill again and found it the hard-est drilling I ever done. It requiredabout three-quarters of an hour tomake a hole 3-32 to 1-8 inch. I havenot succeeded yet in getting themcleaned but they ar
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