Enamel and Dentine.—As the secretion decalcified ordinary bone, I determined to try whether it would act on enamel and dentine, but did not expect that it would succeed with so hard a substance as enamel. Dr. Klein gave me some thin transverse slices of the canine tooth of a dog; small angular fragments of which were placed on four leaves; and these were examined each succeeding day at the same hour.... more...

CHAPTER I PARASITISM AND DISEASE PARASITES he dictionary says that a parasite is a living organism, either animal or plant, that lives in or on some other organism from which it derives its nourishment for a whole or part of its existence. This definition will serve as well as any, as it seems to include all the forms that might be classed as parasites. As a general thing, however, we are accustomed to... more...

Take a fellow, reasonably young, personable enough, health perfect. Suppose he has all the money he can reasonably, or even unreasonably, use. He is successful in a number of different fields of work in which he is interested. Certainly he has security. Women? Well, maybe not any woman in the world he might want. But still, a very nice, choice selection of a number of the very finest physical... more...

Shifaz glanced furtively around the room. Satisfied that it was empty except for Fred Kemmer and himself, he sidled up to the Earthman's desk and hissed conspiratorially in his ear, "Sir, this Johnson is a spy! Is it permitted to slay him?" "It is permitted," Kemmer said in a tone suitable to the gravity of the occasion. He watched humorlessly as the Antarian slithered out of the... more...

EVOLUTION. All subjects pertaining to our knowledge of the soul are too subtle to be weighed and proved by external intellect alone. Our lives are ruled by such a hotch-potch of inherited beliefs and tendencies, that it is almost impossible for us to use any discrimination concerning them; or to arraign ourselves before the tribunal of our own better judgment in such manner as to enable us to separate... more...

PREFACE. I am unwilling that this volume should go forth to the world without some account of its origin and of its contents. I. Appointed last year, (without solicitation on his part,) to the office of Select Preacher, the present writer was called upon at the commencement of the October Term to address the University. His Sermon, (the first in the volume,) was simply intended to embody the advice... more...

GENERAL The Custom Mark III CP Series Oil Fired Unit is a high quality heating unit that will provide many years of comfortable and economical heat if properly installed and given proper care. It is IMPORTANT therefore that these instructions should be followed carefully. SHIPMENT The unit is completely assembled at the factory except for the following parts which are packed in a separate carton and... more...

How could a man tell the difference if all the reality of Earth turned out to be a cosmic hoax? Suppose it turned out that this was just a stage set for students of history? When the sharp snap of a pistol shot came from the half-finished building, Karnes wasn't anywhere near the sandpile that received the slug. He was fifteen feet away, behind the much more reliable protection of a neat stack of... more...

t was 047-63-10 when he opened the door. Before his superior could chew him for prepunctuality, Huvane said as the chief looked up and opened his mouth to start: "Sorry, but you should know. Terra is at it again." Chelan's jaw snapped shut. He passed a hand over his face and asked in a tone of pure exasperation. "The same?" and as Huvane nodded, Chelan went on, "Why can't... more...

Instruction Book. THE FIRST THING. 1. The first thing to do when going into a strange room to take charge, is to learn the names and dispositions of your help, and their ability. By doing this it will save you some trouble. Do not turn off help the first day you go into a room to take charge. Get the good will of your help and keep them; and when they learn your ways and know you mean just what you... more...