TO THE FIRST EDITION.

VOL. I.

It is universally allowed that the study of nature is one of the most pleasing employments that can engage the mind of man. The entertainment it affords is as infinite as the variety of subjects of which it is composed; and such a vast field of speculation lies open to our view, either in the animal, vegetable, or mineral worlds, that each of them is fully sufficient to engross the attention of a single person. It must be allowed, that the study of natural history is so far from having attained that degree of perfection it might have done, by the assiduity of the curious, that it cannot, at present, be considered as having attained its meridian; and the slow manner in which it arrived even to that, has subjected us very much to the reflections of foreigners; many of whom appear surprised, that a nation, not inferior to others in every branch of science and knowledge, should discover so great a want of curiosity, and little attention to a study that has been productive of so many advantages to mankind, and probably, may hereafter produce many more. Certainly, such opportunities for improvement never presented themselves in this kingdom, as in the present age. All corners of the world are visited by our ships; the remotest shores of Europe, Asia, Africa, and America, are not unknown to our countrymen; but feel the effects of that insatiable thirst for traffic and gain, that animates the present generation. Every lover, therefore, of this study must naturally hope, that such noble occasions of increasing the knowledge of nature, may not be neglected. It is indeed true, that the number of its votaries, in England, are but few, in proportion to other states, where professorships and societies are established under the patronage and protection of the chief personages: yet if we consider it as affording an inconceivable fund of entertainment to its followers, it is rather to be wondered it is not more encouraged and propagated among us, than that we should find a few who have resolution enough to judge for themselves, and follow a study that is always new and always pleasing. The sneers and contempt thrown on it by men of narrow minds, who are impatient at hearing of persons bestowing their time in collecting a plant, an insect, or a stone, may perhaps contribute not a little to prevent its progress; but whatever character may be stamped, either upon the study, or its professors, by such persons; it is certain, none but men fit to be placed in the first rank, have usually philosophy enough to prompt them to make enquiries into the works of nature. To some the task appears too arduous, to others too intricate, and to the generality too trifling; who are apt to look with contempt on every pursuit that does not coincide with their own opinions; nor must we, from vulgar minds, expect any conclusions in its favour: with these, a horse, a dog, or a cock, seem to bound the utmost limits of their gratifications. But men of refined tastes will judge otherways. They know that the inexhaustible store of entertainment nature affords in the contemplation of her works, is unbounded. It is not to be enjoyed all at once; the more we pursue, the more we shall possess, in proportion as we manifest a greater or less ardour. Nor is the serene placid enjoyment found therein, to be measured by the common gratifications of sense; as these often leave stings behind that worry the soul, and subvert the end they intended to promote; while the other offers to us its friendly aid, replete with happiness, health, and peace. And further, if the contemplation of the works of the Sovereign Architect, tends to promote that serious and attentive state of mind which disposes men to the pursuit of virtue, in order to be happy; and if the knowledge and practice of virtue are the means of supporting the mind through all the difficult passages and rugged paths of life; the naturalist bids as fair to be happy as any of the human race. His pleasures are not chequered by remorse, or damped by despair; his pursuits leave no horrors on the mind, or clash with the duty he owes his Maker, his neighbour, or his prince; his conscience suffers not for the indulgence of his mind, nor has repentance need to stalk behind him with an uplifted arm, for injustice committed on his fellow-creatures; on the contrary, it is for them ultimately his labours are pursued, for them he inquires into the various arcana of nature; every part of the earth is searched for their benefit, and its bowels are torn out and examined for their advantage.

On the other hand, if we consider natural history as connected with religion, we shall find them so interwoven and blended together as not to be separated. In this view we shall find it the best adapted for opening the mind, enlarging its conceptions, and giving us the most exalted ideas of the Deity, of any science whatever, astronomy not excepted, whose study, however noble it may be thought, tends not more to the same improvement; for certainly the power, wisdom, and goodness of the Almighty are as conspicuous in the smallest objects, as those of the first magnitude, if great and little be only relative terms. If, therefore, natural history is able to accomplish this, nothing surely can afford a more effectual cure for infidelity. For whoever heard of a naturalist being an atheist? or of an infidel, who had spent his life in studying and observing the works of nature? I believe none will hesitate to pronounce the man, who has made any considerable progress in this study, and who could entertain thoughts so injurious to the honour of his Maker, to be a more wonderful being than any that ever went before him.

The train of reflections that arise from these considerations, is greater than is consistent with the plan I have prescribed to myself in these pages. If the reader is desirous of being further informed of the uses and advantages of natural history, I shall refer him to Stillingfleet's Tracts, taken from the Amœnitates Academicæ, published at Upsal; where he may be acquainted with many curious and interesting particulars, which I have not room to insert here; my speculations having been confined to one single branch (insects) I shall only mention such observations relative thereto as may be proper for an introduction of this kind.

Insects may, with great truth, be considered as a rank of beings so wonderful and extraordinary, as to strike with astonishment every observer, if we regard either their structure, powers, or use; and creatures, who, at the same time that they challenge our regard, loudly proclaim the wisdom, goodness, and omnipotence of their great Creator. If their shape and beauty are capable of attracting our notice, their ways of living are no less adapted for exciting our admiration; and the more we enquire into their nature and history, the more occasion we shall find for confessing this great truth, "nothing is created in vain." The wondrous manner in which numbers of them pass their lives, during their first states, is unknown to the greater part of mankind. Most people, indeed, know that a Caterpillar produces a Butterfly; but thousands of persons do not know that a Caterpillar is a Butterfly in disguise, as Dr. Lister ingeniously observes,[[7]] and as Swammerdam[[8]] proved to the great Duke of Tuscany, by stripping off the external skins, and displaying the butterfly concealed beneath them. Many persons are ignorant that plants (even of the most poisonous nature) are the beloved and favourite food of some species of insects, and that what is wholesome and nourishing to one, is pernicious and destructive to another. Who would believe that the hard substance of the soundest Oak was capable of being macerated by an insect, and received into its stomach as food? that it should there yield a proper nutriment for its growth, and that nothing but a substance as hard and firm as that could possibly contribute to the creature's health and increase? Who would imagine that a colony of Ants, an insect so contemptible in size, considered singly, were capable of making animals, of considerable bulk and strength, retreat from them as from a formidable enemy?[[9]] Who would suspect that numbers of insects are appointed to live, during the greatest part of their lives, within the bodies of other animals, many of whom receive no material injury thereby; some become frantic and diseased, and others are doomed to perish, and by their deaths give birth to these their inbred enemies? Who, that is a stranger to natural history, would believe that there are insects destined to live in the waters many months, where their principal employment is the destruction of animals less than themselves, on whom they feed and thrive, till they become inhabitants of the air, when their lives are terminated in a few weeks, perishing by the depredations of old age, if they are lucky enough to escape the power of other animals stronger than themselves? Yet such are the truths existing in nature; truths known to every one conversant with this study. In short, there is no part of the kingdom of nature, where so many wonders are unfolded to us, as in this of insects.

Nor are they to be considered in that contemptible light in which the generality of mankind are apt to place them. We are too prone to think every thing noxious and unnecessary, if we are not fully acquainted with its use. "The poor Beetle that we tread on," serves to fill up an order of beings, as useful and proper in the economy of nature, as that of a partridge or a hare, whose preservation and increase we are so solicitous for. Many others, whose very sight create the most disagreeable sensations, are not less useful and proper, under the same predicament. The carcases of dead animals, which, when putrid, send forth a most nauseous stench, would remain so for a great length of time, were it not for the various kinds of Flesh Flies, who, by depositing their eggs there, help to consume it very quickly, and prevent a continuance so offensive to our nostrils and health. Many kinds of insects are to be found here in England, in great plenty, who, it is highly probable, by a close enquiry into their natures might be rendered very serviceable to us, either mediately or immediately. The blue Dung Beetle (Scarabæus Stercorarius of Linnæus) found in great plenty in July, under horse-dung and cow-dung, it is not unlikely may yield effects, either in medicine or dyeing, that at present we are ignorant of. It is certain, it abounds with salts that are strong and pungent; but the examination of them must be left to time, and the enquiry of some ingenious person.

The Meloe Proscarebeus of Linnæus, or English Oil Beetle, described by Moffat, lib. i. cap. 23., also by Godartius in Lister's translation, number 120. yields an oil by expression in considerable quantity, which is used in Sweden, with the greatest success, in the cure of the rheumatism, by bathing the afflicted part. Of this I have been well assured by an ingenious physician who resided there. Might not the same effects be expected from it here as there? Its virtues, I imagine, are not confined to a single country; nor can I suppose the different situations of them will prevent its being equally efficacious here as in Sweden. However, it is certainly worth while to make the experiment.[[10]]

The Cantharides or Spanish Flies, is a species of insect every one has heard of. They are brought us from abroad, and used medicinally; but principally to raise blisters. For these we pay great sums of money to foreign countries: but a proper examination into the nature of insects might save us the necessity of doing so; for let me not be disbelieved, when I say this very species of the cantharides is found in England.[[11]] Might not, therefore, a close inquiry into the subject, spare us the trouble and expense of applying to foreigners for this article? But are the medicinal virtues of the cantharides confined entirely to that species? Is there none other found in England, answering the same purpose, which we might have by seeking for? If I am not mis-informed, there is. The Musk Beetle, or Cerambix Moschata of Linnæus, is found on the bodies of willow-trees in the month of July, or sooner, if the weather is favourable. This insect, I have been confidently informed by an eminent surgeon (the late Mr. Guy) who tried it, has the same virtues, and produces the same effects as the cantharides; being capable, when properly prepared, of procuring a strong blister in as short a space of time as the other. Whether there is not other insects to be found in this kingdom, whose properties, when examined, might be found similar to the cantharides, is a matter that time only will clear up.