CONTENTS. 



CHAPTER I. 



PAGE 



INTRODUCTORY 9 



CHAPTER .II. 



The Horse considered as a Machine. Necessity of understanding its Construc- 

 tion. General Physiological and Anatomical Facts. Architectural Prin- 

 ciples involved in the Construction of the Skeleton. Of the Joints. The 

 Vertebra. The Cartilages and Ligaments. The Muscles, Voluntary and 

 Involuntary. General Facts, Anatomical, Physiological, and Mechanical, 

 regarding the Muscles. Articular Ligaments. Tendons. The Law of 

 Repair in Muscles and Tendons. Relation of the Form of Organs to their 

 Functions. Utility made to conform to Beauty in the Form of Organized 

 Beings 22 



CHAPTER III. 



Special Anatomy. Necessity of Technical Terms. The Ilio spinalis. Defi- 

 nition of Terms. Psoas magnus. Iliacus. Tensor Vaginas Femoris. 

 Sartorius. Pectineus, Small Adductor, etc. Great Gluteus. Deep Glu- 

 teus. Long Vastus. Semi-tendinosus. Semi-membranosus. Great Ad- 

 ductor. Gracilis. The Adduction and Abduction of Muscles. Triceps 

 Femoris. Gastrocnemii. Automatic Action in the Hind Leg. The Per- 

 forans and Perforatus Muscles and their Tendons. Suspensory Ligament. 

 Difficulties in the U'ay of determining the Amount of Work done by Muscles. 

 Elongation and Contraction of the Limbs. Interference and Stifle Ac- 

 tion. The Action of the Hock Joint to prevent Interference. The Order 

 of Action in the Various Muscles of the Posterior Extremity in Locomotion . 35 



CHAPTER IV. 



The Comparison of the Anterior Extremity to the Spokes of a Wheel considered. 

 Its Three Characters of Crutch, Passive Tool, and Active Automaton. - 

 The Great Serratus. Its Double Character of Tendon and Muscle. 

 Centre of Motion. The Trapesius and Yellow Cord. Levator Angu'.i 



