i m 1 1 Hi KH mm MM I! I ^ / o JOHNASEAVERNS 3 9090 013 413 501 Webster Family Library of Veterinary Medicine Cummings School of Veterinary Medicine at Tufts Un 200 Westboro Road North Grafton, MA 01 536 THE ADVOCATE OF VETERINARY REFORM AND OUTLINES OF ANATOMY AND PHYSIOLOGY OF THE HORSE; ALSO, A GENERAL HISTORY OF THE RISE AND PROGRESS OF THE VETERINARY SCIENCB IN ENGLAND, WITH PRACTICAL OBSERVATIONS ON FEEDING, WATERING, GROOMING, SHOEING, &C, &C. : WRITTEN WITH A VIEW OF REFORMING THE VETERINARY SCIENCE, AND TEACHING EVERY MAN HOW TO PREVENT DISEASE IN ANIMALS. CONTAINING, ALSO, A VETERINARY DICTIONARY, SELECTED FROM THE WORKS OF R. WHITE, V. S., OF LONDON, AND ADAPTED TO THE PRESENT STATE OF THE REFORMED PRACTICE IN TH» UNITED STATES, AS PRACTISED BY THE AUTHOR; WITH SELECTIONS FROM THE WORKS OF YOUATT, PERCIVAL, AND CURTIS, TOGETHER WITH REMARKS AND OBSERVATIONS ON BLOODLETTING, AND THE USE OF POISONS; SHOWING THEIR DESTRUCTIVE TENDENCY, ETC. The fundamental principles taught in this work are, that all medicine should be given with a view of aiding the vital power, instead of depressing, as heretofore. BY GEORGE H. DADD, M.D., PRACTITIONER OF THE PHYSIOLOGICAL PRACTICE OF VETERINARY MEDICINE AND SURGERY, AUTHOR OF "DADD'S CHART OF REFORMED PRACTICE." BOSTON: PUBLISHED BY THE AUTHOR 1855. D23 \%65 Entered according to Act of Congress, in the year 1850, By G. H. Dadd, M. D. in the Clerk's Office of the District Court of the District of Massachusetts. STEREOTYPED AT THE BOSTON STEREOTYPE FOUNDRY. CONTENTS. Introduction, 7 Description of the Bony Structure, 12 The Causes of Complaint, * 15 General History of the Horse, 22 External Conformation of the Horse, 23 Progress of the Veterinary Art in England, 25 Outlines of Anatomy in the Horse, 29 Description of the Structure of the Different Organs, 29 Physiology, 31 Description of the Uses of the different Organs and Functions of the Horse, 31 Nutrition, 31 Digestion, 32 Mastication 32 Chymification, 32 Absorption of the Chyle, 33 Circulation of the Blood, 34 Respiration and Structure of the Lungs 38 Glandular Secretions, 38 Anatomy and Physiology of the Eye, 39 Remarks on the Causes of Disease in the Eye, 42 Anatomy of the Female Organs of Generation, 43 Clitoris, 44 Membrane of the Yagina 45 Mammae, 47 Physiology of the Organs of Generation, Male and Female, 48 Stomach, 49 Anatomy of the Foot, and its Diseases, '. 52 Foot Lameness 56 Corns, 56 Shoeing, 57 Contraction of the Hoof, 61 Remarks on Feeding, 63 Steaming and Preparing Food for Animals, 66 4 CONTENTS. Watering, 69 Exercise, 70 Want of Appetite, 71 On Stable Management, 74 Ventilation and Admission of Light into the Stable, 75 Admission of Light, 76 On the 111 Effects of Manures of large Cities on the Qualities of Plants, . . 77 On Animal Matter, 80 On Breeding, 86 Remarks on Bloodletting, 88 On the Theory of Health, Disease, Fever, and Inflammation, 95 Causes of Disease, 99 Poisons, 99 Congestion of the Brain, &c., 100 How to avoid Congestion, Staggers, and Apoplexy, 104 Inhuman Treatment of Horses in England, 104 On Rabies, or Madness, and the Effects of the Milk of Rabid and Dis- eased Animals, 108 Preliminary Remarks on the Distribution of the Arteries, Veins, &c, . . . . 110 Distribution of Arteries, 112 Anterior Aorta, 112 The Carotid Artery 115 Ramus Anastomoticus, 117 Internal Carotid, 117 Posterior Aorta, , 118 Distribution of Veins in the Horse, 122 The Anterior Vena Cava, 122 The Jugular Vein, 128 The Occipital Vein 123 The Posterior Vena Cava, 125 The Brain and its Appendages, 127 The Sinuses, 128 Cerebrum, 129 Cerebellum, 129 Medulla Spinalis, 129 Origin and Distribution of the Nerves, 130 Cerebral Nerves, 130 Cervical Nerves, 134 The Diaphragmatic or Phrenic Nerves, 135 Dorsal Nerves, 135 Lumbar Nerves, 135 Sacral Nerves, 136 Coccygeal Nerves, 136 Nerves of the Fore Extremity, 137 Nerves of the Hind Extremity 138 Sympathetic Nerve, 139 Origin, Insertion, and Use of the Different Muscles of the Horse, 140 Trapezius, no CONTENTS. O Latismus Dorsi, 140 Rhomboideus Brevis, 140 Rhomboideus Longus, 141 Levator Humeri, 141 Muscles of the Neck, 141 Anterior Cervical Region, • 143 Muscles of the Head, 144 Muscles of the Trunk. — Pectoral Region, 146 Lumbar Region, 148 Internal Costal Region, 150 Muscles of the Trunk. — Abdominal Region, 151 Muscles of the Fore Extremity. — External Scapular Region 152 Posterior Humeral Region, 153 Anterior Humeral Region, 153 Muscles of the Arm, 154 Deep Posterior Brachial Region, 155 Anterior Brachial Region, 155 Muscles of the Hind Extremity, 156 " " Haunch, 156 Internal Femoral Region, 157 Gluteal Region, 158 Pelvic Region, 159 Posterior Femoral Region 159 Muscles of the Thigh, 160 Popliteus, 161 Anterior Crural Region, 162 The Mechanism and Functions of the Joints, 163 Articulations of the Trunk, 163 Articulations of the Fore Extremity 165 " " Hind Extremity, 167 A Table of the Bones in the Structure of the Horse, 169 Distribution of the Lymphatics, 170 The Thoracic Duct, 170 Lymphatics discharging their Contents into the Abdominal Portion of the Thoracic Duct, 171 Ramifications terminating in the Thoracic Portion of the Common Duct, 174 On the Hair, 176 Glossary of Medical Terms used in this work, 181 Dictionary of the Veterinary Art, 189 Appendix, 286 Description of the Organs of Digestion in the Ox,. 286 Internal and External Relations, 290 Horn- Ail in Cattle, 291 A List of Horse and Cattle Medicines, 297 Remarks on Clysters, 305 Important to Owners of Horses and Cattle, 307 PLATES. Plate No. 1. Showing the External Parts of the Horse ; also, a View of the Muscular Structure 12 2. Skeleton, 14 3. The Heart viewed externally, 35 4. The Stomach of the Horse, 50 5. The Leg from the Shank Bone, 53 * m INTRODUCTION. The author is in hopes that the principles here set forth may enable those for whom the work is mainly written (viz., our farming interest, and those who have the care of and own horses) to perceive the folly of violating nature's laws, in attempting to cure disease ; also, that they may be led to see the wisdom and necessity of aiding nature in her intentions for the removal of the causes of disease. It is a subject of great importance, and should be the pride and duty of every man to sympathize with those who, though our slaves, have common feeling with us. Yes, brutes, as we call them, have, like us, memory, ideas of reflec- tion, reason, and feelings of gratitude and duty; in fact, all those moral powers differing from ours, not in kind, but merely in degree. There is no period, in the history of the United States, when our domestic animals have ranked so high, or have been held in such general estimation, as at the present time ; yet there is no subject on which there is such a lamentable want of knowledge, as the proper treatment of the diseases of our domestic animals. How long our citizens will suffer this important branch of study to be neglected, remains to be seen. The sons of America are ever foremost in the field of improvement. America numbers among her farming interest men of giant minds, whose cry is, Reform; they demand, and will have, 8 INTRODUCTION. sooner or later, a more effectual system of medication — a system that will remove the diseases of their animals without submitting them to the excruciating torment of the firing iron, lancet, and the destructive agents that have heretofore been Used for the cure of disease. What man of common sense can for a moment suppose, that powerful destructive agents can restore a weak, sinking animal to a healthy state? Many of the means recommend- ed by some works on horse-doctoring, would make a well animal sick, whatever they might do to the one already diseased. We are told that the agents they recommend pro- voke the system to rally her powers, and resist disease ; and, at the same time, these agents, being destructive in their na- ture, produce another, or a secondary disease, and that the primary disease is cured by exciting a secondary one! This is just as absurd as knocking a horse down to make him stand up. But truth and experience are abroad, exerting their in- fluence on the minds of reflecting, honest, and independent men, and the day is not far distant when the lancet and poi- son will be rejected in the treatment of disease in animals. As the advocate of veterinary reform, the author has en- deavored to present the subject to the reader in a brief manner, without writing all round, and failing to hit the mark. The object aimed at is the prevention of disease. It is an old but true saying, that "an ounce of prevention is worth a pound of cure j " and it is more convenient and less expensive. Every farmer throughout the land is furnished by the Creator with ample means for preventing the introduction of disease into the animal organization, and to remove it, in some cases, when it has made its appearance ; thus the man who confines his prescriptions to a few good remedies, the action of which he is well acquainted with, is far more successful than he who is constantly changing his medicines for the popular compounds of the day. A knowledge of anatomy, physiology, and pathology is important, yet not absolutely necessary, in the cure of disease. The two former are, of course, more important that the latter. INTRODUCTION. 9 All the pathology on earth does not enable us to cure disease ; many of our farmers, who have rejected the lancet and poisons, and use only those articles which are favorable to the whole animal functions, are in the daily habit of curing disease, of whose pathology they know nothing. The pathologist may discover alterations in tissues, the blood, and the lungs, and tell us that herein lie the cause and seat of disease ,* yet these changes themselves are but results, and preceding these were other manifestations of disorder ; therefore pathology must always be imperfect, because it is a science of consequences. The most powerful microscopes have been used to discover the seat of disease ; yet it has not taught us to cure one single disease hitherto incurable. Experience is the only true guide of every successful practitioner. The principles of our physiological practice may be summed up as follows : — We contemplate the animal system as a perfect piece of mechanism, subject to life and death ; that, while the vital power is free and unobstructed, the animal is in a physiologi- cal or healthy state ; but when, by any means, the vital power is obstructed, it is in a diseased or pathological state. All our intentions of cure being in accordance with nature's laws, (viz., promoting the integrity of the living powers,) we have termed our system a physiological one, though it is sometimes denominated botanic, in allusion to the fact that all our remedial agents are derived from the vegetable king- dom. We recognize a conservative or healing power in the ani- mal economy, whose unerring indications we endeavor to follow. Our system proposes, under all circumstances, to restore the diseased organs to a healthy state, by cooperating with the vitality remaining in those organs, by the exhibition of sana- tive means, and, under all circumstances, to assist, and not oppose, nature in her curative processes. Poisonous substances, blood-letting, or processes of cure that contemplate destruction of parts, or, in other words, act 2 10 INTRODUCTION. pathologically, cannot be used by us. The laws of animal being are physiological. Theymever were, and never will be, pathological ; hence we cooperate with nature, and with na- ture's laws, by using agents that act physiologically. We believe that the best system of veterinary science is that which prevents disease by proper attention to breeding, rearing, and stable management. It will be perceived that our aim is to depart from the debilitating and life-destroying practice, and approach, as near as possible, to the sanative. The greatest obstacle to veterinary knowledge is the be- lief, that in the science of medicine there are pathological laws ; and it has led men to believe that fever and inflamma- tion are disease. Now, there never was, and never will be, a pathological law. The divine Creator implanted in the ani- mal organization laws to maintain it in its normal state, and those laws are physiological, and not pathological. Now, to believe that the all-wise God implanted in the constitution both normal and abnormal laws, would be but to destroy his own intention. The only laws in domestic animals, in any state, are physiological. Overfeeding and imperfect ventila- tion may prevent the full and free play of these laws, thereby curtailing health ; but still, all the vital action that exists is physiological. In justice to J. S. Skinner, the talented editor of the Farmer's Library, we would observe, that our notes and strictures on Youatt apply to the original work, as published in London. The work has since been republished in this country, with valuable additions by J. S. S., and is better adapted to the wants of the American people. If the latter gentleman would only employ his talents in advocating and sustaining the non-poison principle, our cause (the cause of humanity) would receive a valuable auxiliary. To Dr. C. M. Wood we are indebted for valuable sugges- tions, gleaned from an extensive practice of sixteen or seven- teen years in this city. He has experienced the imperfect theoretical teachings of the schools, and assures us, that he has established facts, deduced from observation and experi- INTRODUCTION. 11 ence, which has led to a more successful treatment of the diseases of domestic animals. The author acknowledges his obligations to various sources for this work. The authors named in the title page have been consulted and freely employed ; the most valuable assist- ance has been derived from the teachings and works of the professors of the P. M. College of Ohio. G. H. D. DESCRIPTION OF THE BONY STRUCTURE. The Head is composed of the following bones, which a reference to the plate will exemplify : a, the os frontis, or forehead ; b, the nasal bones ; c, the os lachrymal is ; d, the jugal, or cheek bone ; e, the superior maxillary, or upper jaw ; /, that portion which unites with the palatine and jugal bones ; g, the inferior maxillary bone, which contains the upper incisor teeth ; h, the maxilla posterior, or lower jaw ; the dark shade between a, c, d, is the orbit of the eye ; t, the parietal, or vertical bone ; m, n, the temporal bone, consisting of the squamous and petrous portions ; n, the petrous division, being a part of the internal ear ; I, o, p, the occipital or knoll bone ; o marks the occipital elevation j p, the cuneiform pro- cess ; I, the condyloid process, marking its junction with the atlas. The Neck. — B, B, the seven cervical vertebrae, or bones of the neck j a, the first of these, is denominated the atlas. The Spine is composed of the eighteen dorsal vertebrae, 1 — 18 ; the lumbar vertebrae, which form the loins, six in number, 1 — 6 ; the sacrum, five in number, a, b, c, d, e, the coccygis, or bones of the tail, 1 — 15. The Thorax, Ribs, Shoulder, and Sternum. — The true ribs are nine in number, 1 — 9 ; and are so denominated from their cartilages being united to the sternum ; 10 — 18 mark the false ribs, their cartilages being inserted into each other ; a, the head, which articulates with the transverse process of the first dorsal vertebrae ; b, the end uniting the sternum ; C, the sternum ; D, the scapula, or shoulder-blade ; c, the neck ; d, coracoid process, or apophysis ; g, the anterior spina- tus fossa ; h, the spine ; between e and / lies the base, which is the extent of the cartilage of the scapula ; between c and e is the posterior costa ; and between d and / lies the anterior costa. DESCRIPTION OF THE BONY STRUCTURE. 13 The Fore Legs. — E, the humerus ; k, cervix and head, uniting the shoulder-blade ; F, the ulna; the upper extremity, m, forms the olecranon, or elbow ; n, n, the radius ; G, G, the carpus, or knees, consisting of seven bones ; H, H, the meta- carpal or shank bones ; o, o, the cannons ; p, p, the small metacarpal ; q, q, the pastern ; r, r, the sessamoids j s, s, the coronets, or small pastern bones ; t, t, the coffin bones, or os pedis. The Pelvis and Hind Legs. — /, the pelvis, made up of three bones ; a, b, c, the illiiun ;