wunder · Library
Searchlights on Health: the Science of Eugenics cover

Searchlights on Health: the Science of Eugenics

by B. G. Jefferis

By B. G. Jefferis · Science · Public domain

Start reading free → Jump to chapter 1

About this book

Searchlights on Health: the Science of Eugenics is a public-domain classic of science by B. G. Jefferis.

The complete text is on this page and the chapter pages below — all 103 chapters, about 140,568 words (~12 hours of reading), free to read online with no signup.

Searchlights on Health: the Science of Eugenics at a glance

Author
B. G. Jefferis
Length
140,568 words · about 12 hours to read
Chapters
103
Price
Free — public domain

Learn more about science

Short, fact-checked Wunder courses related to Searchlights on Health: the Science of Eugenics — free to read, no signup. Or browse every course.

The Principles of Biology, Volume 1Read Herbert Spencer's ambitious synthesis of matter, metabolism, development, adaptation, and evolution, then test its nineteenth-century mechanisms…20 min courseFood preservation science chemistryFood doesn't spoil on its own — it gets eaten, by microbes and by its own enzymes. This course reveals the single idea behind every preservation…45 min courseFood Chemistry & Culinary ScienceCooking is chemistry you can eat. This course teaches the handful of reactions underneath every dish — how heat moves and why water caps browning…45 min courseThe chemistry of caramelHeat one pure ingredient and hundreds of new compounds appear. Sugar's slow collapse from clear syrup to bitter black, degree by degree.10 min courseThe Science of CookingThe kitchen is a physics and chemistry lab in disguise — learn the science that makes cooking work, and why recipes fail.30 min courseFood safety and chemistry fundamentals for adult cooksAbout one in six people gets sick from food each year — from hazards you can't see, smell, or taste. This course gives adult cooks the science that…45 min course

Read Searchlights on Health: the Science of Eugenics online — full text

Part 1

SEARCHLIGHTS ON HEALTH

THE SCIENCE OF EUGENICS

* * * * *

A Guide to Purity and Physical Manhood Advice to Maiden, Wife and Mother Love, Courtship, and Marriage

* * * * *

PROF. B.G. JEFFERIS, M.D., PH. D.

and

J.L. NICOLS, A.M.

With Excerpts from Well-Known Authorities

REV. LEONARD DAWSON DR. M.J. SAVAGE REV. H.R. HAWEIS DR. PANCOAST DR. STALL DR. J.F. SCOTT DR. GEORGE NAPHEYS DR. STOCKHAM DR. T.D. NICHOLLS DR. R.L. DUGDALE DR. JOHN COWAN DR. M.L. HOLBROOK

* * * * *

Published by J.L. NICHOLS & COMPANY Naperville, Illinois, U.S.A. 1920 AGENTS WANTED

"Vice has no friend like the prejudice which claims to be virtue."--Lord Lytton.

"When the judgment's weak, the prejudice is strong."--Kate O'Hare.

"It is the first right of every child to be well born."

* * * * *

COPYRIGHTED 1919,

J.L. NICHOLS & CO.

OVER 1,000,000 COPIES SOLD

* * * * *

TABLE OF CONTENTS.

Knowledge is Safety, page 3 The Beginning of Life, page 5 Health a Duty, page 7 Value of Reputation, page 9 Influence of Associates, page 11 Self-Control, page 12 Habit, page 17 A Good Name, page 18 The Mother's Influence, page 21 Home Power, page 23 To Young Women, page 26 Influence of Female Character, page 30 Personal Purity, page 31 How To Write All Kinds of Letters, page 34 How To Write a Love Letter, page 37 Forms of Social Letters, page 39 Letter Writing, page 43 Forms of Love Letters, page 44 Hints and Helps on Good Behavior at All Times and at All Places, page 49 A Complete Etiquette in a Few Practical Rules, page 52 Etiquette of Calls, page 56 Etiquette in Your Speech, page 57 Etiquette of Dress and Habits, page 58 Etiquette on the Street, page 59 Etiquette Between Sexes, page 60 Practical Rules on Table Manners, page 63 Social Duties, page 65 Politeness, page 70 Influence of Good Character, page 73 Family Government, page 76 Conversation, page 79 The Toilet or The Care of the Person, page 84 A Young Man's Personal Appearance, page 86 Dress, page 88 Beauty, page 91 Sensible Helps to Beauty, page 95 How to Keep the Bloom and Grace of Youth, page 97 Form and Deformity, page 98 How to Determine a Perfect Human Figure, page 99 The History, Mystery, Benefits and Injuries of the Corset, page 101 Tight-Lacing, page 104 The Care of the Hair, page 107 How to Cure Pimples or Other Facial Eruptions, page 111 Black-Heads and Flesh Worms, page 112 Love, page 114 The Power and Peculiarities of Love, page 118 Amativeness or Connubial Love, page 122 Love and Common Sense, page 123 What Women Love in Men, page 126 What Men Love in Women, page 129 History of Marriage, page 132 Marriage, page 134 The Advantages of Wedlock, page 135 The Disadvantages of Celibacy, page 138 Old Maids, page 140 When and Whom to Marry, page 144 Choose Intellectually--Love Afterward, page 148 Love-Spats, page 154 A Broken Heart, page 159 Former Customs and Peculiarities Among Men, page 162 Sensible Hints in Choosing a Partner, page 165 Safe Hints, page 170 Marriage Securities, page 174 Women Who Make the Best Wives, page 178 Adaptation, Conjugal Affection, and Fatal Errors, page 181 First Love, Desertion and Divorce, page 185 Flirting and Its Dangers, page 190 A Word to Maidens, page 192 Popping the Question, page 194 The Wedding, page 200 Advice to Newly Married Couples, page 201 Sexual Proprieties and Improprieties, page 206 How to Perpetuate the Honey-Moon, page 209 How to Be a Good Wife, page 210 How to Be a Good Husband, page 211 Cause of Family Troubles, page 217 Jealousy--Its Cause and Cure, page 219 The Improvement of Offspring, page 222 Too Many Children, page 229 Small Families and the Improvement of the Race, page 232 The Generative Organs, page 234 The Female Sexual Organs, page 235 The Mysteries of the Formation of Life, page 238 Conception--Its Limitations, page 240 Prenatal Influences, page 244 Vaginal Cleanliness, page 246 Impotence and Sterility, page 248 Producing Boys or Girls at Will, page 252 Abortion or Miscarriage, page 253 The Murder of Innocents, page 256 The Unwelcome Child, page 258 Health and Disease, page 263 Preparation for Maternity, page 266 Impregnation, page 269 Signs and Symptoms of Pregnancy, page 270 Diseases of Pregnancy, page 274 Morning Sickness, page 282 Relation of Husband and Wife During Pregnancy, page 283 A Private Word to the Expectant Mother, page 284 Shall Pregnant Women Work?, page 285 Words for Young Mothers, page 286 How to Have Beautiful Children, page 288 Education of the Child in the Womb, page 292 How to Calculate the Time of Expected Labor, page 295 The Signs and Symptoms of Labor, page 297 Special Safeguards in Confinement, page 299 Where Did the Baby Come From?, page 303 Child Bearing Without Pain, page 304 Solemn Lessons for Parents, page 312 Ten Health Rules for Babies Cut Death Rate in Two, page 314 The Care of New-Born Infants, page 315 Nursing, page 317 Infantile Convulsions, page 319 Feeding Infants, page 319 Pains and Ills in Nursing, page 321 Home Lessons in Nursing Sick Children, page 325 A Table for Feeding a Baby on Modified Milk, page 329 Nursing [Intervals Table], page 329 Schedule for Feeding Healthy Infants During First Year [Table], page 329 How to Keep a Baby Well, page 330 How to Preserve the Health and Life of Your Infant During Hot Weather, page 332 Infant Teething, page 336 Home Treatments for the Diseases of Infants and Children, page 338 Diseases of Women, page 348 Falling of the Womb, page 350 Menstruation, page 351 Celebrated Prescriptions for All Diseases and How to Use Them, page 354 How to Cure Apoplexy, Bad Breath and Quinsy, page 365 Sensible Rules for the Nurse, page 366 Longevity, page 367 How to Apply and Use Hot Water in All Diseases, page 368 Practical Rules for Bathing, page 371 All the Different Kinds of Baths and How to Prepare Them, page 372 Digestibility of Food, page 374 How to Cook for the Sick, page 375 Save the Girls, page 380 Save the Boys, page 390 The Inhumanities of Parents, page 396 Chastity and Purity of Chracter, page 400 Exciting the Passions in Children, page 404 Puberty, Virility, and Hygenic Laws, page 406 Our Secret Sins, page 409 Physical and Moral Degeneracy, page 414 Immorality, Disease, and Death, page 416 Poisonous Literature and Bad Pictures, page 421 Startling Sins, page 423 The Prostitution of Men, page 427 The Road to Shame, page 430 The Curse of Manhood, page 433 A Private Talk to Young Men, page 437 Remedies for the Social Evil, page 440 The Selfish Slaves of Doses of Disease and Death, page 441 Object Lessons of the Effects of Alcohol and Smoking, page 445 The Destructive Effects of Cigarette Smoking, page 449 The Dangerous Vices, page 451 Nocturnal Emissions, page 457 Lost Manhood Restored, page 459 Manhood Wrecked and Rescued, page 461 The Curse and Consequence of Secret Diseases, page 464 Animal Magnetism, page 470 How to Read Character, page 473 Twilight Sleep, page 479 Painless Childbirth, page 479 The Diseases of Women, page 480 Remedies for Diseases of Women, page 483 Alphabetical Index, page 486

* * * * *

HE STUMBLETH NOT, BECAUSE HE SEETH THE LIGHT.

* * * * *

KNOWLEDGE IS SAFETY.

1. The old maxim, that "Knowledge is power," is a true one, but there is still a greater truth: "KNOWLEDGE IS SAFETY." Safety amid physical ills that beset mankind, and safety amid the moral pitfalls that surround so many young people, is the great crying demand of the age.

2. CRITICISM.--This work, though plain and to some extent startling, is chaste, practical and to the point, and will be a boon and a blessing to thousands who consult its pages. The world is full of ignorance, and the ignorant will always criticise, because they live to suffer ills, for they know no better. New light is fast falling upon the dark corners, and the eyes of many are being opened.

Part 2

3. RESEARCHES OF SCIENCE.--The researches of science in the past few years have thrown light on many facts relating to the physiology of man and woman, and the diseases to which they are subject, and consequently many reformations have taken place in the treatment and prevention of diseases peculiar to the sexes.

4. LOCK AND KEY.--Any information bearing upon the diseases of mankind should not be kept under lock and key. The physician is frequently called upon to speak in plain language to his patients upon some private and startling disease contracted on account of ignorance. The better plan, however, is to so educate and enlighten old and young upon the important subjects of health, so that the necessity to call a physician may occur less frequently.

5. PROGRESSION.--A large, respectable, though diminishing class in every community, maintain that nothing that relates exclusively to either sex should become the subject of popular medical instruction. But such an opinion is radically wrong; ignorance is no more the mother of purity than it is of religion. Enlightenment can never work injustice to him who investigates.

Continue reading Searchlights on Health: the Science of Eugenics free in the Wunder reader →

Contents — all 103 chapters

More free classics to read

Man's Redemption of Man: a Lay SermonWilliam OslerMaking a Rose GardenHenry H. SaylorIn New England Fields and WoodsRowland Evans RobinsonAntarctic Penguins: a Study of Their Social HabitsG. Murray LevickThe Gamekeeper At Home: Sketches of Natural History and Rural LifeRichard JefferiesWild Life in a Southern CountyRichard JefferiesThe Confessions of a PoacherJohn WatsonA Revised and Illustrated Treatise on Grain StackingJohn N. De Lamater

The Wunder Library · Learn anything · Home — complete public-domain books, free to read, with narration and illustrations. Searchlights on Health: the Science of Eugenics is in the public domain.

© 2026 Wunder Learning LLC · Terms & Privacy