Intensive method to breed mice proposed by Dr J Frank Daniel
The article describes Dr. J Frank Daniel developing an intensive method to breed mice. Starting from a single pair, five generations in a year yield over 800 survivors. Mice are in high demand for scientific experimentation, especially disease research.
MENTIONED IN THIS ARTICLE
J. Frank Daniel
Breeding Mice for Science Then and Now
A historical note describes Dr. Daniel's mouse breeding method highlighting the scientific value of mice in disease research. It covers optimal conditions for reproduction, housing design, diet, lifespan, and generation time, noting rapid multiplication and potential heredity insights.
MENTIONED IN THIS ARTICLE
Daniel
Why You Should Beware of the Man Who Puts Off His Wedding Day
A cautionary piece describing men described as neurasthrenic for delaying marriage. It warns that indecision signals weak will and psychical cowardice, urging immediate breakup if engaged to such a man. It frames the issue as a risk to a stable marriage and emphasizes self-mastery and decisiveness as essential.
When All the Linen Should Be Sterilized
The article advises thorough linen sterilization during serious illness. It advocates washing linen in cold water immediately, soaking to neutralize germs, and warns against boiling or using germicides that set stains. It notes quilts are unwashable, recommends blankets over sheets, and suggests rubber gloves for handlers.
Exploding Flowers At Algiers Palm Noted In Desert Heat
A rare floral event occurred in the Algiers animal garden when a palm tree blossom exploded due to intense sun heat and hot, dry air. Fermentation inside the spathe, stirred by a Sahara sirocco, blasted the fragrance and created a cloud of golden fragments, a phenomenon echoed in ostrich contexts.
MENTIONED IN THIS ARTICLE
Algiers
Sahara
Simple Milk Test and Cold Air Breathing Advice
A vintage note describes a milk test using a steel needle to detect dilution and warns against breathing cold air through the mouth. It also suggests buying shoes late in the day for best fit.
Restore cane seats with hot soap and salt solution
To tighten sagging cane bottomed seats prepare a hot soapsuds solution with dissolved salt. Soak both sides with the mixture and let the chair stand in the open air. The seats will tighten and firm up as they dry.
Curling Feathers and Onion Vinegar Tip
Cooking onions with a tin cup of vinegar boiled on the stove removes disagreeable odors from the room. Another tip shows how to revive a damaged feather by salting it and drying it before a bright fire to restore its condition.
Restoring Varnished Wood
Restoring varnished wood with a method to touch up white patches on a dining-room table. After placing hot dishes imprint patches, apply a brush dipped in spirits of nitre and immediately rub with a cloth moistened in sweet oil.
Kneeling Basket Promises Practical Uses From Garden To Home
A kneeling basket is described as a versatile, cushion lined basket woven like a chair for kneeling. It aids gardeners, homemakers, and children for games, with a front flap to protect skirts and a soft surface to reduce knee pain. It can be custom made by basket dealers.
Why There Are More Personal Crisis Reports in Summer
The piece argues that more personal crisis reports occur in summer due to contrasts between sunny nature and mental suffering. It cites psychological theories and statistics linking happiness in surroundings to intensified despair, prompting suicides. It contrasts summer with bleak winter weather and how observers rationalize the seasonal pattern.
Clerks Prove Stronger Hands Than Granite Cutters
In Washington D C Prof Gordon Law tested fifty clerks and fifty quarrymen with a grip device. Clerks averaged 111 pounds grip versus 99 pounds for granite cutters, strongest clerk at about 150 pounds vs strongest cutter 145. Office work may build stronger wrists than outdoor hammering. Further tests planned to compare different occupations.
MENTIONED IN THIS ARTICLE
Washington, D. C
Gordon Law
Washington Y. M. C. A
Law
How a Cat Sees in Darkness and Whisker Senses
The passage argues cats do not rely solely on vision in the dark. It notes cats can see some in darkness but would struggle without whiskers. Whiskers and facial fur are long enough to match head width, acting as delicate sensing hairs. Each whisker grows from a follicle.
The Lion and its Whispering Whiskers
The passage explains that a lion uses highly sensitive whiskers and padded feet to detect obstacles and move silently. Even a light twig stir can alert the animal, guiding it through the jungle with minimal noise and warning.