pie SAS ASASA AN ARAN AINAINAS TINA ASANS {SATs diss JNVAIA aw s—66s—N as iN BE y Dall. ) J 4 y ay E Gj Hi aa WH ZN fl WA fs) 7 XS SS ian heale id i E ' ) ‘ ‘ ' ' ’ ‘ 1 ' ' ' ' ' ) ' ' 1 ' ‘ ‘ ' ' i] ‘ ‘ i) ' ‘ ' ' ‘ ' ' ' ‘ ' ‘ ' ‘ ' ' ! ' ' ’ ' ‘ ' ' ‘ ' ' ‘ ' ' ' i] ' ‘ aie Uj | Sa y. “ Bk: 4 a eae at” iy Py | Fi RRL NEY \. a aN YaST . 45 We ) Ht i | Ww M za > VAN IAAISAVAY ROLE TS yy SVT SES SVE AYE KE. aie \ Pa Wie OVS PEK fo at ie \TH EK OYSTER, = POPULAR SUMMARY OF A SCIENTIFIC STUDY BY t WILLIAM K. BROOKS, Pn. D. Professor of Animal Morphology in the Fohns Hopkins University and Director of the Chesapeake Zoological Laboratory. JUL 3 1980 LIBRAR\E BALTIMORE THE JOHNS HOPKINS PRESS 1891 COPYRIGHT, 1891, BY THE JOHNS HOPKINS PRESS. Press and Bindery of Isaae Friedenwald Co., Baltimore. PN TRODUCTION: This book (for which I have been asked to write an introductory note) is written for the information of all who care for oysters,—no matter whether their point of view be that of providers or consumers,—of the oysterman, the money-maker, the housekeeper, the legislator, the editor, or the student of natural history. So well is the book written that many parts of it are as fascinating as a story. The facts that have led to its preparation are these. After many years of plenty; Maryland is in danger ofan oyster famine. The supplies which nature bestows most bountifully have been so treated that scarcity now takes the place of abundance, anxiety and alarm have followed security. Authentic figures showing the de- cline and fall of the oyster empire of the Chesapeake, startle all who consider them. It is not only the dredgers, the dealers, the shuckers, the packers, the coopers, the tinners, and the carriers, that are to suffer if this state of affairs continues, everybody in Mary- land will likewise suffer more or less. An important vi INTRODUCTION. article of food, that should be as plentiful as it is excellent, will grow more scarce, and a branch of industry will be cut off, which employs a large amount of labor and of capital and so contributes to the wel- fare of the State, the region, and the country. aie interior as well as the seaboard, the farmer as well as the oysterman, will be injured unless some remedy is found. The author of this volume is well known in all scientific circles as an accurate, clear-sighted and trust- worthy observer. His papers are received and quoted by the best authorities in every place where the study of natural history is carried on. Not only can he see with his trained eye and powerful glasses, more than most people, but he can state distinctly and without any deviation from the exact truth, what he sees, and what he thinks of what he sees. His life has been devoted to the careful observation of the forms and changes of form in living beings. To the study of the oyster he has devoted a large part of his time for more than ten years past, having been encouraged to do so by the Johns Hopkins University, in which he is an honored professor, and by the legislature of the State of Maryland, which he served as an oyster commissioner in 1883-4. He can hold his own not only among naturalists, but also among practical men. He has dredged in every part INTRODUCTION. Vil of the bay. To use his own words, he has tonged oysters in five different States; in the warm waters of the South, he has spent months under the broiling tropical sun, wading over the sharp shells which cut the feet like knives, studying the oysters ‘at home.” He has planted oysters ; he has reared them by collect- ing the floating spat; and he has hatched from artifi- cially fertilized eggs more oysters than there are inhabitants of the United States. More than this, he has diligently studied the experience of other States and countries and has gathered up the knowledge of the world in respect to the life of the oyster, its ene- mies and its needs, its dangers and its protections. The people of Maryland may rejoice that in just this crisis, the State has the service of such a citizen, ready without any reservations and without any expectations of reward, to give his hard-earned knowledge to the public. But the author has another claim to be heard. He is governed by common-sense. The difficulty that he sees is summed up in a single sentence that he prints in capital letters, THE DEMAND FOR CHESAPEAKE OYSTERS HAS OUTGROWN THE NATURAL SUPPLY. The remedy he proposes is to increase the supply by artificial means. To show what is possible for the propagation and protection of young oysters, he describes in the most interesting manner, in terms Vill, INTRODUCTION. scientific enough to be accurate, not so scientific as to be hard of understanding, the life-history of the bivalve. ‘The oyster’s exposure to infantile dangers, its pre- ferred home, its dietary habits, its susceptibility of culture, its wonderful fecundity, are vividly portrayed. Indeed, this modest volume is at once a memoir in natural history and a chapter of political economy. DANIEL C. GILMAN. Office of the President of the Jouns Hopkins UNIVERSITY, April 14, 1801. CONTENTS: INTRODUCTION, CHAPTER I|.—THE POSSIBILITIES OF OYSTER CULTURE, Cuapter IJ.—THE ANATOMY OF THE OYSTER, CuHaApTerR II]. — THe DEVELOPMENT OF THE OYSTER, CHAPTER | V.2—Lur ARTIFICIAL. CULTIVATION OF OYSTERS, CHAPTER V.—THE CAUSE OF THE DECLINE OF OUR OYSTER INDUSTRY, AND THE PROTECTION OF OUR NATURAL BEDs, CHAPTER VI.—A TALK ABOUT OYSTERS, CHAPTER VII.—THE REMEDY, ' PAGE 15 4I 69 145 198 207 Pipe OY Sie Re CHAPTER TT. THE POSSIBILITIES OF OYSTER CULTURE. A citizen of Maryland will give the oyster a high place in the list of our resources. The vast number of oysters which the Chesapeake Bay has furnished in the past is ample proof of its fertility, but it is difficult to give any definite statement as to its value. Statis- tics, even in recent years, are scanty and doubtful, and it is not possible to estimate the number of oysters which our beds have furnished to our people with any accuracy, although it may be computed, approxi- mately, from indirect evidence. “The business of packing oysters for shipment to the interior was estab- lished in Maryland in 1834, and from that date to quite recent years it has grown steadily and con- stantly, and, though small and insignificant at first, it . has kept pace with the development of our country, the growth of our population, and the improvement of means for transportation. For fifty-six years the -bay has furnished the oysters to meet this constantly increasing demand. The middle of this period is the year 1862, and as the greatest development of the 1 2 THE OVS TE business has taken place since, the business of 1862 may be used as an average for the whole period, with little danger of error through excess. We have no statistics for 1862, but in 1865 C. S. Maltby made a very careful computation of the oyster business of the whole bay for the year. He says there were 1000 boats engaged in dredging and 1500 canoes engaged in tonging. The dredgers gathered 3,663,125 bushels of oysters in Maryland and _ 1,083,209 bushels in Vir- ginia, while 1,216,375 bushels were tonged in Maryland and 981,79! bushels in Virginia, or 6,954,500 bushels in all.’ About half of these were sent to Baltimore, and the rest to the following cities in the following order: Washington, Alexandria, Boston, Fair Haven, New York, Philadelphia, Seaford, and Salisbury. Of the 3,465,000 bushels which came to Baltimore, 625,000 were consumed in the city and its vicinity, while 2,840,000 bushels were shipped to a distance by Balti- more packers. Ten years later the harvest of oysters from the bay had increased to 17,000,000 bushels, and it has continued to increase, year after year, up to the last few years. We may safely regard the harvest of 1865 as an approximation to the annual average for the whole period of fifty-six years, and other methods of computation give essentially the same result. The total harvest of oysters from the Chesapeake Bay since the establishment of the packing houses is therefore about 56 times 7,000,000, or 392,000,000 bushels, and the local consumption along the shores of the bay brings the grand total fully up to four hundred million bushels. THE OYSTER. 8 This inconceivably vast amount of delicate, nutri- tious food has been yielded by our waters without any aid from man. It is a harvest which no man has sown; a free gift from bounteous nature. The fact that our waters have withstood this enor- ~ mous draft upon them, and have continued for more than half a century to meet our constantly increasing demands, is most conclusive evidence of their fertility and value, and the citizens of Maryland and Virginia might well point with pride to the boundless resources of our magnificent bay, were it not for two things. - First of these is the fact, which for many years we strove to hide even from ourselves, that our indiffer- ence and lack of foresight, and our blind trust in our natural advantages, have brought this grand inherit- _ance to the verge of ruin. Unfortunately this is now so clear that it can no longer be hidden from sight nor explained away, and every one knows that, proud as our citizens once were of our birthright in our oyster-beds, we will be unable to give to our children any remnant of our patrimony unless the whole oyster industry is reformed without delay. We have wasted our inheritance by improvidence and mismanagement and blind confidence; but even if our beds had held their own and were to-day as valuable as they were fifty years ago, this would be no just ground for satisfaction, in this age of progress, to a generation which has seen all our other resources developed and improved. Four hundred million bushels of oysters is a vast quantity, and it testifies to the immeasurable value of our waters; but every one who has studied the subject, 4. THE OVSTER. either on its scientific side or in the light of the experience of other countries, knows that the harvest of oysters from our bay has never, even at its best, made any approach to what it might have been if we had aided the bounty of nature by human industry and intelligence. The four hundred million bushels is the wild crop which has been supplied by nature, without any aid from man, and it compares with what we might have obtained from our waters in about the same way that the nuts and berries which are gathered in our swamps and forests compare with the harvest from our cultivated fields and gardens and orchards. ” When we have learned to make wise use of our opportunities, and when the oyster-beds of the bay have been brought to perfection, a harvest of four hundred million bushels in half a century will not be regarded as evidence of fertility. It will take many years of labor to bring the whole bay under thorough cultivation, and it will require a great army of industrious and skillful farmers, and great sums of money; but the expense and labor will be much less than an equal area of land above water requires ; and while it may be far away, the time will surely come when the oyster harvest each year will be fully equal to the total harvest of the last fifty years, and it will be obtained without depleting or exhaust- ing the beds, and without exposing the laborers to hardships or unusual risk. This is not the baseless speculation of an idle fancy. Our opportunities for rearing oysters are nparalleled in any other part of the world, and in another place I have shown that, in other countries, much less valuable THE OYSTER. 5 grounds have by cultivation been made to yield oys- ters at a rate per acre which, on our own great beds, would carry our annual harvest very far beyond the sum of all the oysters which have ever been used by the packers of Maryland and Virginia. This is capable of proof by the evidence of other countries, but I wish to show now that it is proved with equal conclusiveness by the natural history of the oyster. The Chesapeake Bay isone of the richest agricul- tural regions of the earth, and its fertility can be com- pared only with that of the valleys of the Nile and the Ganges and other great rivers. It owes its fertility to the very same causes as those which have enabled the Nile valley to support a dense human population for untold ages without any loss of fertility; but it is adapted for producing only one crop, the oyster. All human food is vegetable in its origin, and whether we eat plants and their products directly, or use beef, mutton, pork, fowls or eggs as food, it all carries us back to the vegetable kingdom ; for if there were no plants, all animals would starve at once. Every one knows that this is absolutely true of all ter- restrial animals, and all naturalists know that it is equally true of sea-food. The blue-fish preys on smaller fishes; many of these on still smaller ones; these in their turn upon minute crustacea ; these upon still smaller animals ; and these pasture on the micro- scopic plants which swarm at the surface of the ocean. However long the chain may be, all animals, those of the water as well as those of the land, depend on plants for food, although most of the vegetable life of the 6 THE OYSTER. ocean is of such a character that its existence is known only to naturalists. If there were no plants all animals would starve, and no animal is a direct food-producer, for it can fee nothing except what it has got from plants. Now, for the purposes of animal life a small plant is as effective as a large one, for however small it may be, it still has the power, which is possessed by no animal, to gather up the inorganic matter of the earth, and to turn it into vegetable matter fit for the nourish- ment of animals. Microscopic plants can do this work as well as great forests of lofty trees, provided they are numerous enough, and size counts for nothing. Every one knows that the sea is rich in animal life ; that it contains great banks covered with cod and had- dock, miles and miles of water crowded full of mack- erel and herring, and great monsters of the deep such as the whales and sharks. To the superficial observer the vegetation of the sea appears to be very scanty, and, except for the fringe of sea-weeds along the shore, the great ocean seems, so far as plant life is concerned, to bea barren desert. If it be true that all animals depend on plants for their food, the vegetation of the ocean seems totally inadequate for the support of its animal life. The microscope shows that its surface swarms with minute plants, most of them of strange forms, totally unlike any which are familiar, and having nothing in common with the well known trees and herbs and grasses of the land except the power to change inor- ganic matter into food which is fit for animals. Most of these plants are so small that they are abso- THE OYSTER. pes lutely invisible to the unaided eye, and even when they are gathered together in a mass, it looks like slimy discolored water and presents no traces of structure. They seem too insignificant to play any important part in the economy of nature, but the great monsters of the deep, beside which the elephant and the ox and the elk are small animals, owe their éxistence to these microscopic plants. Their vegetative power is wonderful past all expres- sion. Among land plants, corn, which yields seed about a hundredfold in a single season, is the emblem of fertility, but it can be shown that a single marine plant, very much smaller than a grain of mustard seed, would fill the whole ocean solid in less than a week, if all its descendants were to live. This stupendous fact is almost incredible, but it is capable of rigorous demonstration, and it must be clearly grasped before we can understand the life of the ocean. As countless minute animals are con- stantly pasturing upon them, the multiplication of these plants is kept in check, but in calm weather it is no rare thing to find great tracts of water many miles in extent packed so full of them that the whole surface is converted into a slimy mass, which breaks the waves and smooths the surface like oil. The so-called “black water” of the Arctic and Antarctic oceans, the home and feeding ground of the whale, has been shown by microscopic examination to consist of a mass of these plants crowded together until the whole ocean is dis- colored by them. Through these seas of “black water” roam the right whales, the largest animals on earth, gulping at each mouthful hundreds of gallons 8 THE OVS Lea, of the little mollusca and crustacea which feed on the plants. Intropical seas, ships sometimes sail for days through great floating islands of this surface vegetation, and the Red Sea owes its name to the coloration of its water by great swarms of microscopic plants which are of a reddish tinge. The plant life of the ocean is ample for the support of all its animal life, just as the vegetation of the land gives a maintenance to all terres- trial animals. The source of the food of animals is the vegetable world. What is the source of the food of plants? Most of it consists of mineral matter, derived from the crust of the earth; but before this can be used by plants it must be dissolved in water. The solid rocks cannot maintain life until they have been ground down and dissolved, and in the form of frost and rain, water is continually breaking down and wearing away the hard rocks, and carrying the fragments down to lower levels to form the fertile land of the hillsides and valleys and meadows. As the roots of the plants penetrate this loose material they gather up the mineral food which is dissolved by the rain and convert it into their own substance, and as their leaves fall and their trunks decay, the decaying vegetable matter gradually builds up the leaf-mould and meadow-loam which are so well adapted for supporting vegetable life. Each year, however, the heavy rains wash great quantities of this light, rich soil into the rivers, which in times of flood cut into their banks and carry the arable land, which has been built up so slowly, down to lower levels, until at last it finds its way to the ocean and is lost;So:far as its: use to man 1s concerned. THE OYSTER. 9 In a long, flat river-valley it may be arrested for a time, so that man may make use of it, but its final destination is the ocean, and as this has already been enriched by the washings through untold ages, all that is most valuable for the support of life is now dis- solved in its waters, or deposited upon its bottom, where man can make no use of it. We love to dream of the shipwrecked treasures which lie among the bones of the sailors on the sea- bottom ; of the galleons sunk and lost with their pre- cious cargoes of bullion and jewels from the treasure- chambers of the Incas and the palaces of Asia; but all these, and all the “gems of purest ray serene, the dark, unfathom’d caves of ocean bear”: all the thous- ands of tons of gold and silver which, as chemists tell us, the sea holds dissolved in its water,—all these are as nothing when compared with these precious wash- ings from the land of all that fits it for supporting life. Man will some time assert his dominion over the fishes of the sea, and will learn to send out flocks and herds of domesticated marine animals to pasture and fatten upon the vegetable life of the ocean and to make its vast wealth of food available, but at present we are able to do little more than to snatch a slight tribute from the stream of nutritive material which is flowing down into the ocean, as it comes to temporary rest in the valleys of our great rivers. Every one knows the part which these great river- valleys have played in human civilization. In the valley of the Nile, of the Tigris, and of the Ganges we find the most dense populations; here were the great cities of the past; here agriculture and architec- IO THE OYSTER, ture were developed, and here art, literature and sci- ence had their birth. We owe to the great river-valleys, where the natural fertility of the soil has lightened the struggle for bread and has afforded leisure for higher matters, all that is most distinctive of civilized man. The Chesapeake Bay is a great river-valley; not as large as that of the Nile or Ganges, but of enough con- sequence to play an important part in human affairs, and to support in comfort and prosperity a population as great as that of many famous states. It receives the drainage of a vast area of fertile land stretching over the meadows and hillsides of nearly one-third of New York, and nearly all of the great agricultural states of Pennsylvania, Maryland and Virginia. The most valuable part of the soil of this great tract of farming land, more than forty million acres in area, ultimately finds its way to the bay, in whose quiet waters it makes a long halt on its journey to the ocean, and it is deposited, all over the bay, in the form of fine, light, black sediment, known as oyster-mud. This is just as valuable to man, and just as fit to nourish plants, as the mud which settles every year on the wheat fields and rice fields of Egypt. It is a natural fertilizer of inestimable importance, and it is so rich in organic matter that it putrefies in a few hours when exposed to the sun. In the shallow waters of the bay, under the influence of the warm sunlight, it produces a most luxuriant vegetation; but with few exceptions, the plants which grow upon it are micro- scopic and invisible, and their very existence is un- known to all except a few naturalists. They are not THE OYSTER. AS (et confined like land plants to the surface of the soil, and while they are found in great abundance on the surface of the mud, they are not restricted to it, for their food is diffused in solution through the whole body of water, and the mud itself is so light that it is in a state of semi-suspension, and the little plants have ample room among its particles. On land, the plant-producing area is a surface, but the total plant-producing acreage of the bay is many times greater than the superficial area of its bottom. As the little plants are bathed on all sides by food, they do not have to go through the slow process of sucking it up through roots and stems, and they grow and multiply at a rate which has no parallel in ordinary familiar plants; and they would quickly choke up the whole bay if they were not held in check; but their excessive increase is prevented by countless minute animals which feast upon them and turn the plant substance into animal matter, to become in their turn food for larger animals. Asa matter of fact, they are not very abundant, but there is no difficulty in finding them in any part of the bay, by straining the ~ water through a fine cloth. In this way we obtain a fine sediment, which is shown by the microscope to consist almost entirely of them. The variety of these microscopic plants and animals is very great, and a series of big volumes would be needed to describe the microscopic flora and fauna of the bay. Most of them occur in other waters as well, but many are peculiar to the bay, which is an excep- tionally favored spot for their growth. The exploration of this invisible world with a 12 THE OYSTER. microscope is an unfailing delight to the naturalist, but at first sight it seems to have no particular bearing on human life. The ability to turn inorganic mineral matter into food for animals and for man does not depend on size, and in this work the microscopic flora of the bay is as efficient as corn or potatoes, but infi- nitely more active and energetic. In the oyster we have an animal, most nutritious and palatable, especially adapted for living in the soft mud of bays and estuaries, and for gathering up the microscopic inhabitants and turning them into food for man. The fitness of the oyster for this peculiar work—for bringing back to us the mineral wealth which the rivers steal from our hillsides and meadows—is so complete and admirable, so marvellous and instruc- tive, that it cannot be comprehended in its complete significance, without a thorough knowledge of the anatomy and embryology of the oyster. This book is not a scientific treatise ; its purpose is practical, and it will aim at the treatment of its sub- ject in its relations to practical ends; but we cannot fully appreciate the great possibilities of our bay without something more than the vague and erro- neous notions regarding the nature of the oyster which are generally current. The inestimable value of our inheritance in the black mud of the bay has been pointed out, and it now remains to show that the oyster is an animal which has been especially evolved for life in this mud, and that through its aid we may make our inheritance available. A thorough knowledge of the oyster will THE OYSTER. ee teach much more than this. It will show the capacity of the oyster for cultivation, and it will also show why its cultivation is necessary, and why our resources can never be fully developed by oysters in a state of nature. We have never enjoyed the hundredth part of our advantage, nor can we ever do so if we continue to rely upon nature alone; and this fact, which has been proved again and again by statistics, is perfectly clear to any one who knows what an oyster is, and what are its relations to the world around it. As its world is chiefly microscopic, no one can penetrate into the secrets of its structure and history without training in the technical methods of the laboratory ; and busi- ness contact with the oyster cannot possibly, with any . amount of experience, give any real insight into its habits and mode of life. I speak on this subject with the diffidence of one who has been frequently snubbed and repressed ; for while Iam myself sure of the errors of the man who tonged oysters long before I was born, and who loudly asserts his right to know all about it, it is easier to acquiesce than to struggle against such overwhelming ignorance, so I have learned to be submissive in the presence of the elderly gentleman who studied the embryology of the oyster when years ago as a boy he visited his grandfather on the Eastern Shore, and to listen with deference to the shucker as he demonstrates to me at his raw-box, by the aid of his hammer and shucking-knife, the fallacy of my notions of the struc- ture of the animal. Still I may be permitted to state that I am not totally without experience. I have dredged oysters 14 THE OYSTER. in every part of the bay, from Swan Point and the Bodkin, to Craney Island and Lynn Haven. I have tonged oysters in five different States; and in the warm waters of the South, where frost is unknown and the oysters flourish above low-tide mark, I have enjoyed the opportunity to explore the natural beds, and have spent months, under the broiling tropical sun, wading over the sharp shells which cut the feet like knives, studying the oysters at home. I have planted oysters; I have reared them by collecting the floating spat; and I have hatched from artificially fertilized eggs more oysters than the number of people in the last census; and I boldly claim enough practical experience to acquit me from the charge that my views are theoretical. CHAPTER TE: THE ANATOMY OF THE OYSTER. The most prominent fact in the organization of the oyster is its shell. Its body is shut in between two long concave stony doors, which are made of lime- stone, and are fastened together at one end, somewhat in the same way that the covers of a long, narrow -check-book are bound together at the back. One of these shells, the flat one, is on the right side of the body, and the other, which is much deeper, on the left. When oysters are fastened to each other or to rocks, the left shell is attached, and the oyster lies on its left side. When it is at home and undisturbed its shell is open, so that the water circulates within it, but when disturbed it shuts its shell with a snap, and is able to keep it firmly closed for a long time. The snapping drives out the water, together with any irri- tating substances which may find their way in, and on the natural beds the oysters snap their shells shut, from time to time, for this purpose. The snapping is popularly called feeding, but it is nothing of the kind. It serves to drive food out instead of taking it in, and so long as the shell is open a gentle current of water is drawn in bya delicate piece of microscopic machinery which will be explained later on. The food of the 16 THE OVSTER. oyster consists of invisible organisms which float in the water and are drawn in with it. The apparatus for opening and closing the shell is very interesting. Ifyou were to open a check-book, and were to wedge a piece of rubber between the leaves, close to the back, it would form a spring, which would be squeezed by closing the book, and would open it again when released. A book with such a spring would be open at all times, except when forci- bly closed. Wedged in between the two shells of the oyster, at their narrow ends, is an elastic pad, the hinge-ligament, which acts in exactly the same way. When the shell is forcibly closed the ligament is squeezed, and it expands when it is released and thus throws the free edges of the shells apart. The liga- ment is not alive. It is formed, like the shell itself, as an excretion from the living tissues of the oyster, and its action is not under the control of the animal. It keeps the shell open at all times, unless it is counter- acted, and for this reason an oyster at rest and undis- turbed, or a dead oyster, always has its shell open. The active work of squeezing the passive ligament and closing the shell is done by a large, powerful muscle, made up of a bundle of contractile fibres which run across the body between the shells, and are fastened to their inner surfaces over the dark-colored spots which are always to be seen on empty oyster shells. The muscle is known to oyster-openers as the heart, and they assure you that when this is cut, the vital point, the seat of the oyster’s life, is reached and that a wound here causes instant death. This is of course an error, and cutting the muscle causes the shell to THE OYSTER. 17 open simply because it destroys the animal’s power to close it; but a fresh oyster on the half-shell is no more dead than an ox which has been hamstrung. Any one who has struggled with an oyster-knife to force open an obstinate thick-shelled specimen, knows the great strength of this little muscle. It is said that when fishermen are caught by the feet or hands between the shells of the giant clam of the Pacific, they never escape alive, but are held, as if by a vise, until the tide rises and drowns them; but firmly as the muscle of the oyster holds the shell together, a little skill is all that is needed to overcome it. Some years ago, while on the State Oyster Commission, I stood with my watch in my hand, in a Crisfield packing- house, and timed a young man, who, with nothing but a small thin knife, opened thirty oysters in a minute. He worked with the precision of a machine, and made six motions for each oyster. One hand took the oys- ter from the pile at his side, the other cut the muscle from the upper shell; a third movement threw the shell away ; a fourth forced the oyster from the other shell; a fifth threw it into a tin bucket, and the second shell was thrown aside by the last movement. He was very proud of his skill and of the prizes he had taken, and although he seemed to have abundant assurance, he explained that his movements were retarded by his diffidence in the presence of state commissioners, and he said that, when free from embarrassment, he could “shuck”’ thirty-six oysters a minute. The work of closing the shell is done by the muscle, but we must go very much farther in the study of the oyster in order to find why it closes. .It is opened by 1* io. THE OYSTER. the mechanical properties of the ligament, but the cause of its closure cannot be the mechanical proper- ties of the muscle, for these are just the same whether it is open or at rest. Careful investigation shows the existence of a wonderful apparatus, consisting of the muscle which does the work, of nerves which connect the muscle with the brain, of other nerves which run to the more exposed parts of the oyster’s body, and of sense organs which are connected with the ends of these sensory nerves, and these serve to put the animal into communication with the external world. Though very much simpler, the mechanism is essentially like that of our own bodies. The oyster’s shell is lined by a fleshy mantle, which is fringed by a border of dark- colored sensory tentacles, which are partially exposed _ when the shell is opened. The approach of danger is perceived by these organs, which transmit a sensation of danger along the sensory nerves to the brain, and this in turn sends a nervous discharge along another set of nerves to the muscle, and this shortens under the stimulus and pulls the shells together and holds them fast. The contrast between the opening and the shutting of the oyster’s shell is an excellent illustration of the dif ference between vital activity and non-vital action. The explanation of the movement which opens the shell is found in the physical properties of the ligament, and a piece of rubber in the same place would produce the same effect; but while the closure of the shell is un- doubtedly due to the physical properties of the muscle, in order to find the reason for its action we must carry our investigation very much farther, and must learn THE OYSTER. 19 what was the change, external to the oyster, which excited the sense organs, and must ask how the oyster has learned to associate such a sensation with the presence of danger, and how it has learned that the danger may be escaped by closing the shell. It is much more easy to ask this question than to answer it. The oyster is by no means a simple animal, and our efforts to study and understand its structure bring us, at the first step, face to face with problems of the most profound character; problems which will tax all the resources of investigators and philosophers for many generations. We will not, however, enter into these deep questions, but will confine ourselves to simpler matters. The muscle is attached to the shell at some distance from the hinge, in order that it may have leverage and work to advantage; and it must therefore be able to move as the shell grows, for in an oyster three inches long its area of attachment is outside what was the extreme border of the shell when this was only an inch long. The muscle travels by the addition of new fibres on its outer surface, together with the absorption and removal of those onitsinner border. As it moves, the old impression on the shell is gradually covered up by new deposits of lime, and in an empty shell it may be traced for some distance up towards the hinge, when it gradually becomes more faintly marked,as the layers of new shell grow thicker. A very good idea of the way the shell grows and keeps pace with the growth of the body, may be gained by the careful examination of the muscular impression on its inner surface. Every fool knows why a snail has a house, but the king could 20 THE OYSTER. not tell how an oyster makes his shell. We can now give a satisfactory answer to what will not, I hope, be thought a fool’s question: “ Canst tell how an oyster makes his shell ?”’ The shell, on each side of the body, is lined by a thin, delicate, fleshy fold, the mantle; which may be compared to the outer leaf on each side of the check- book, next the cover. It lies close against the inside of the shell, and forms a delicate living lining to protect the body and the gills, and it is also the gland which makes the shell. At all times, while the animal is alive, it is laying down new layers of pearl over its whole inner surface, and as each successive layer is a little larger in area than the one before, the shell increases in size as well as in thickness, and the hinge, where there are many layers, is very thick, while the edge, which is new, is quite thin and sharp. Each layer is very thin, hardly thicker than. a sheet of tissue paper, but the deposition of layer on layer gradually results in a solid box of stone. Shells which grow on rough, irregular surfaces con- form to their shape as perfectly as if they had been moulded into the ridges and furrows, like soft clay. An oyster growing in the neck of a bottle takes the smooth, regular curve of the glass,and on the claw of a crab an oyster shell sometimes follows all the angles and ridges and spines, as ifit were made of wax instead of inflexible stone. Its apparent plasticity and the mouldings of its surface are due to the flexibility of the soft edge of the mantle. When the oyster is at rest this protrudes a little beyond the edge of the shell, THE OYSTER. 21 so that each new layer is a little larger in area than the last one. The soft mantle readily conforms to the shape of the body to which the oyster is fastened, and however irregular this may be, the new shell takes its shape and closely adheres to it, because the new deposits are laid down directly upon it. You will see from this account the error of the current belief that an old oyster cannot fasten itself. Since the adhesion takes place around the growing edge, an oyster may fasten itself at any time, and clusters of oysters are often found with their shells” soldered together near their tips. This can of course only occur after they are well grown. Oysters are able to close up broken places in their shells,and most molluscs sometimes absorb and rebuild parts of the shell. If any foreign body gets in between the shell and the mantle, shelly matter is deposited upon it. The pearls of the pearl oyster are formed in this way. Some small particle, such as a grain of sand, works its way in, and forms a nucleus which is gradually covered by layer after layer of pearl. The brilliant lustre, as well as that of mother-of-pearl, which is nothing but polished shell, is due to the interference of light caused by the laminated structure. It is said that the Chinese manufacture pearls, or rather make the pearl oyster do the work for them, by inserting between the shell and the mantle strings of small shot. Did you ever see one of the sacred clam shells which the Chinese Buddhists believe to have a miraculous origin? They are often found in collec- tions. The inside ofthe shell has a beautiful pearl lustre, and along it is a row of little fat images of Buddha, 22 SHE OVS THA squatting with his legs crossed under him, and his elbows on his knees: they are formed of pearl pre- cisely like that which lines the rest of the shell, a little raised above its surface and outlined in faint relief, but they are part of the shell, with no break nor joint. In the process of manufacturing them, the shell of the living animal is wedged open, and thin images, punched out of a sheet of bell-metal, are inserted. The animal is then returned to the water, and is left there until enough new shell has been formed to * cover them with a varnish of pearl thick enough to fasten them, and to hide the metal, while permitting the raised outline to be seen. Several years ago it occurred to me that a series of microscopic specimens of stages in the growth of the shell might be obtained in the same way, and that, by studying them, the whole history of the process might “be traced. |One of my students, at my suggestion, put into the shells of a number of oysters thin glass circles, such as are used to cover microscopic specimens. The oysters were then returned to the water, and were left undisturbed until new shell began to be formed on the glasses. These were then taken out and studied under the microscope. At the end of twenty-four hours the glass was found to be covered by a transparent, faintly brown film of thin gummy deposit, which exhibited no evidences of structure, and contained no visible particles of lime, although it effervesced when treated with acids, thus showing that it contained particles too small to be visible with a microscope. The gummy film is poured out from the wall of the mantle, and in forty-eight ; , THE OYSTER. 23 hours it forms a tough leathery membrane fastening the glass cover to the inside of the shell. At about this time the invisible particles of lime begin to aggre- gate and to form little flat crystals, hexagonal in out- line, and about 5,4;, of an inch long. The crystals grow and unite into little bundles or groups, and new ones appear between the old ones, until, at the end of six days, the film has completely lost its leathery char- acter and has become stony, from the great amount of } lime present in it. In three or four weeks the glass | cover is completely built into the shell and can no longer be seen, and its place is only to be traced by its form, which is perfectly preserved upon the inner surface of the shell. When broken out it is found to be coated with a thick plate of white shell, which is beautifully smooth and pearly upon the side nearest the glass. Microscopic examination of this plate shows that it is made up of an immense number of minute crystals, packed and crowded together into a solid mass, with- out any regular arrangement. These observations show that the new layers are thrown off in the form of a gummy excretion from the mantle, with the lime in solution, and that the particles unite with each other and form crystals while the gum is hardening. The oyster obtains the lime for its shell from the water, and while the amount dissolved in each gallon is very small, it extracts enough to provide for the slow growth of the shell. | It is very important that the shell be built up as rapidly as possible, for the oyster has many enemies continually on the watch for thin-shelled specimens. In the lower part of the bay 24 THE OYSTER. I have leaned over a wharf and watched the sheeps- head moving up and down with their noses close to the piles, crushing the shells of the young oysters between their strong jaws and sucking out the soft bodies. As I watched them I have seen the juices from the bodies of the little oysters streaming down from the corners of their mouths, to be swept away by the tide. The sooner a young oyster can make a shell thick enough to resist such attacks the better, not only for the oyster but for us also; for once past this dangerous stage of development, there is a prospect that it may live to complete its growth; although it is true that the fully grown oyster has many enemies which either crush the shell or pull it apart, or else bore holes through it in order to reach the delicate flesh within. At all times in its life its chance of survival is greatest when the supply of lime is so abundant that it is able to construct rapidly a thick, massive shell. The rate of growth of any animal must be regulated by the supply of that necessary ingredient of its food which is least abundant, as may be illustrated in many ways. To run a locomotive the engineer must have fuel and water and oil. He needs very little oil, but that little he must have. After this is gone, an unlimited supply of fuel and water will not help him. He must have oil or stop. So, too, if he have plenty of oil and fuel, but only a little water, he must stop as soon as the water fails. In general, the amount of work he can do is determined by his supply of that of which he has least. If food in general is abundant while there is a scarcity of one necessary article, growth can take place THE OYSTER. . 25 only so fast as the scarce article can be procured. A superfluity of other things is of no value, for it cannot be utilized. There are many reasons for believing that the growth of oysters is limited by the supply of lime, and that all the other necessary ingredients of their food are so abundant that an increase in the supply of lime would cause more rapid growth, greater safety from enemies, and an increase in the number of oysters. All kinds of shelled molluscs grow more rapidly, and reach a greater size, and have stronger and thicker shells in coral seas, where the supply of lime is unlimited, than in other waters. In some parts of the Bahamas the large pink-lipped conch, the one which we often see for sale in the fruit stores of Baltimore, is so abundant that whole islands, large enough to be inhabited, are entirely made up of the broken frag- ments of these beautiful shells, which have been pounded to pieces and heaped up by the waves. The fresh-water mussels of our western rivers are ’ very large in limestone regions, and so abundant that the bottom is almost paved with them, while in another river, perhaps only a few miles away, but flowing through a country where there is little lime, they are few and very small, with thin, fragile shells. If you turn over the old bones which are sometimes found in the woods and fields, you will nearly always find a number of snails which have been drawn to them for the sake of the lime. In order that the oyster may grow rapidly,and may be securely protected from its enemies, it must have lime. The lime in the water of the bay is derived in 2 26 THE OYSTER. great part from the springs of the interior, which, flow- ing through limestone regions, carry some of it away in solution, and this is finally carried down the rivers and into the bay. Some of it is no doubt derived from deposits of rock inthe bed of the ocean, and some from the soil along the shores. Now, the geologist will tell you that the limestone rock has all of it at one time been part of the bodies of living animals. Limestone is either old reefs of fossil coral, or beds of extinct shells, or the skeletons of other animals and plants which lived in remote ages and stored up the lime from the ocean at a time when it was more abundant than itis now. The oyster gets the greater part of its lime from these sources in this roundabout way, buta very considerable portion is obtained in a much more direct way, by the decomposition of old oyster shells. We save up egg shells to feed laying hens, but we waste our oyster shells. in every possible way, and treat them as if they were of no value. Some are burned for lime, some are used for making roads and wharves, some are used for filling in low land, some are dumped in great piles at convenient spots in the bay, where they sink far down into the mud and are lost. I shall show you soon that there is another far more important reason why they should be returned to the beds, but their value as food for the oyster is very great, and should lead us to return them to the beds. On the oyster-beds an old shell is soon honeycombed by boring sponges and other animals, and as soon as the sea-water is thus admitted to its interior, it is rapidly dissolved and diffused. Ina few years nothing THE OYSTER. ay is left. It has all gone back into a form which makes it available as oyster food, and it soon begins its trans- formation into new oyster shells. In this way the oysters obtain some of their lime directly without being compelled to draw on the inland beds of ancient fossils, and if all the shells could be returned to the beds, this source of supply would be greatly increased. The difference between the right and the left shells of the oyster has a very profound significance, for in science nothing is trivial or unimportant. Most of the near relations of the oyster, like the clam and the fresh-water mussel, have the two sides of the body, and the two shells, alike. These animals are not fastened nor stationary like the oyster. They move from place to place in search of food, and their line of locomotion lies in the plane which divides the body into halves. They are erect and bilaterally symmetrical like other locomotor animals, such as the horse, the fish, the butterfly and the crab. The full-grown oyster has no locomotor power and it lies on its left side, but in the early part of its life-it is very active, and is then bilat- erally symmetrical like the clam. When it ceases its wanderings and settles down for life, it topples over, falls on its left side, and fastens itself by its left shell, which soon grows deep and spoon-shaped, while the right becomes a flat, movable lid. The body, which. was originally symmetrical, becomes dis- torted or twisted to fit the difference in the shells, and naturalists see in the fact that the locomotor relations of the oyster are symmetrical through life, while the oyster loses its symmetry as soon as it settles down, one of the proofs that it is descended 28 THE OYSTER. PLATE T. Figure I. The left side of an oyster lying in one shell, with the other shell removed. The mantle has been turned back a little, to show its fringe of dark- colored tentacles, and in order to expose the gills. The part of the mantle which is turned back in this figure marks the place where the current of water flows in to the gills. FIGURE 2. An oyster in the left shell, with the right shell and right fold of the mantle removed, to show the gills and the body of the oyster. ais the hinge, 4 is the edge of the mantle, c is the muscle, d@ is the pericardium, 7 is the hinge ligament, g the gills, % the lips. THE OYSTER Fig. | Bias A.Hoen & Co, Lithocaustic, Baltimore. THE OYSTER. 29 from locomotor ancestors. There are many other proofs that this has been its history, and that it has, in comparatively modern times, learned to fasten itself to rocks above the soft mud of our bays and estuaries,, in order to avail itself of the rich vegetation ; that it has lost its symmetry in order to fit it for this mode of life. The oyster is a very ancient animal, and its sedentary habits belong to the more modern part of its history; although this change took place very long ago, so far as human chronology goes, and fossil oysters are found in many parts of the world. In order to understand the anatomy of the oyster, a clear conception of the structure and significance of its gill is most important. In ail the bivalve mol- luscs the gills are very complicated, and they domi- nate over the whole structure of the body in such a way that an anatomical sketch of the animal is of necessity little more than an account of the gills. A thorough knowledge of the oyster-gill will not only throw light on the purpose and use of all its other organs: it will at the same time help us to understand the great value of the animal as a means for making the microscopic inhabitants of our waters useful, and it will also show how well it is adapted for culti- vation, and why it is impossible for natural oysters to stock the whole bay without aid from man. -The labor which is necessary before we can havea clear, accurate picture of them, of their complicated structure, their relation to other parts of the body, their use and their origin, is considerable, but it is well worth while, for the gills give us the key to the whole significance of the oyster; but this requires 30 THE OYSTER. close attention to all the details of a long, complicated and minute description, which from the nature of the case cannot be stated briefly, although it may all be put in simple language. A gill is, of course, a breathing organ, for aerating the blood by exposing it to the oxygen in the water ; and the oyster has a heart, for driving to the various organs of the body the blood which has been purified in the gills. It is easy to see and study the oyster’s heart, but in order to do so the animal must be opened with great care, by cutting the muscle witha thin sharp blade, as near the shell as possible. If this is done, a small semi-transparent space will be seen close to the inner edge of the muscle. The thin mem- brane which covers the space is the pericardium, or the chamber which holds the heart, Plate I, d, and through its transparent wall this may be seen slowly pulsating, for an oyster is not killed by opening its shell, and its heart continues to beat for hours, or, under favorable conditions, for days. If the pericar- dium be gently lifted and cut with sharp scissors, the heart, Plate II, d, with its blood-vessels, will be exposed. It consists of two chambers, the auricle, which receives the pure blood from the gills, and a ventricle, which drives it through arteries to the various organs of the body. While the gill of an oyster is a breathing organ, like the gill of a fish or crab or conch, this is only one of its many uses. The fish and the crab and the conch have other organs for supplying the gills with a stream of fresh water, but the gills of the oyster, besides puri- fying the blood, keep up a circulation of water for THE OYSTER. acenuinge * themselves. They are also organs for gathering up food from the water, and after it has been gathered they become organs for carrying it to the mouth. They are also reproductive organs, adapted for secur- ing the fertilization of the eggs, and thus providing for the propagation of the species. In the European oyster and in the mussel they are also brood-chambers, in which the young are held and protected and nourished during their early stages of growth, until they are large enough to care for themselves. An organ which is at once a gill, a pump for sup- plying the gills with water, a food-collector, an organ for carrying the food into the mouth, a reproductive organ, and a nursing-chamber, must, of course, be complicated. The oyster’s gill does all these things, and does them all well. It is not a jack-of-all-trades, but a machine which is beautifully adapted for carrying them all on at the same time, in such a way that each use helps the other uses, instead of hindering them. This is the more remarkable since an ordinary mol- lusc, such as the conch, has distinct organs for all these purposes, although the oyster’s gill does every- thing just as well and just as readily as the various organs of the conch. There are four gills in the oyster, two on each side of the body. They are long, flat, thin, leaf-like organs, Plates I and II, g, placed side by side, and nearly filling the mantle chamber, in which they hang. Each gill is made up of two leaves, so that there are in all eight gill-leaves. If you gum together the ends of a folded sheet of foolscap paper, so as to make a flat pocket, this, when 32 THE OYSTER. PLA EE An oyster in the right valve of the shell, dissected so as to show the internal organs. The anterior end of the body is at the top of the figure, and the dorsal surface on the right hand. 6 the mantle, c the muscle, d the heart, ¢ the gill, h the lips, z the intestine, 7 the liver, # the mouth, s the stomach. THE OYSTER «Sioa mee A.Hoen &Co,Lith THE OYSTER. 33 held vertically, with the opening above, will form a pretty good model of a single gill. The closed portions of the four gills hang down into the mantle-chamber, side by side, but their upper edges are fastened to each other, and to the inside of the mantle, in such a way that they form a folded par- tition, something like a double W, which divides the mantle-chamber into two parts: a lower chamber, in which the gills hang, known as the gill-chamber, and an upper chamber, into which the pockets open. This chamber is known as the cloaca, the Latin word for a sewer, or channel for waste water, and I hope to show you the fitness of the name soon. The partition between the two chambers is formed somewhat in this way. The upper edge of the outer leaf of the outer gill is united, along its whole length, to the inner surface of the mantle. The upper edge of the inner leaf of the outer gill is united to the same edge of the outer leaf of the inner gill. The upper edges of the inner leaves of the two inner gills are ‘united to each other on the middle line of the body. If you were to make four pockets out of four sheets of paper, and were then to gum two of them together along their free edges, you would make a double pocket, which might be opened out so that a section ~ through it would be likea W. This would serve as a model of the two gills on one side of the body, and two more sheets, treated in the same way, would make a model of the other two gills. Now gum two W’s together, side by side, and the double W will be a model of the four gills. Now open a very large book-cover, just far enough to gum the upper outer 34 THE OYSTER. edge of one W to the inside of one cover, and the opposite edge of the other W to the other, and you will have a rough model of the coarse anatomy of the oyster’s gills, like the diagram in Fig. 1 of Plate III. The space between the covers is the mantle-chamber, divided by the gills into a lower portion or gill-cham- ber, in which the gills hang, and an upper cloacal chamber, into which the pockets open. So far I have spoken of the gills as if the pockets reached, without interruption, from end to end, but. this is not the case. Each pocket is divided up, by a series of vertical partitions, into a number of small cavities—the water tubes, each of which ends blindly below, and opens above into the cloaca. To represent them in our model we must gum the two leaves of each pocket together from top to bot- tom along a series of vertical lines about an inch apart. Our model is very much larger than the actual gill, of course. The spaces between the partitions which are thus formed will represent the water tubes, zw, in Figs. I and 3 of Plate III, closed below and opening above into the cloaca, and our model will now illustrate the . anatomy of the gill, so far as it can be made out without a microscope. I must now speak of the minute anatomy. Ifa small piece of one of the gills be cut out, and spread flat upon a glass slide so that its surface may be examined under a microscope, it will be found to be thickly covered with parallel ridges running from top to bottom, like the lines on the sheet of paper, each ridge being separated from the next one by a deep THE OYSTER. ae furrow. Fig. 3 of Plate III is a greatly magnified drawing of a cross-section of a small part of a gill, including one water tube, zw, and the partitions a, a, between it and ‘the adjacent tubes;.+,7,7 are the ridges, and #, # water pores. In the bottoms of the furrows there are many minute openings—the water pores, which pass through the wall of the gill into the water tubes, and thus form the channels of com- munication between the two divisions of the mantle- chamber. The ridges themselves are hollow, or, rather, each one contains a minute blood-vessel, which runs throughout its entire length, so that each wall of each gill is practically a grating of parallel, vertical blood- vessels, in which the blood is purified by contact with the water which fills the gills and the chamber in which they hang. The purified blood is then forced into larger vessels, which carry it to the heart, by which it is pumped to all parts of the body, to be again returned to the gills after it has become impure. The gills are therefore easily intelligible, so far as they are simply organs of respiration; they hang in the water which fills the mantle-chamber, and their walls are filled with blood-vessels in which the blood comes into close contact with the water. The way in which the current of fresh water is kept up to bathe the gills continually with a new supply is more complicated. When one of the ridges on the surface of the gill is examined with a high power of the microscope, it is found to be fringed on each side by a row of fine hairs, Plate III, Fig. 2, c,c, each one less than <4, inch 36 THE OYSTER. long, and so fine that they are invisible under a low magnifying power. They project from the sides of the ridges, over the furrows between them, and therefore overhang the water pores in the bottoms of the furrows. In a fragment cut froma fresh gill, each one of these hairs is constantly swaying back and forth, with a motion like that of an oar in rowing, quick and strong one way, and slower the other way. Theyall move in time, but they do not keep stroke, for each one comes to rest an instant before the one on one side of it, and an instant after the one on the other side. So that waves of motion are continually running from one end of each ridge to the other, like the waves which you have seen running over a field of ripe grain, as each stalk bends before the wind and then recovers. What would happen if a boat's crew were to row with all their strength, with the boat tied to a wharf? As they could not pull the boat through the water, they would push the water past the boat. This is exactly what the cilia do. They set up a current in the water. Each one is so small that its individual effect is inconceivably minute, but the innumerable multitude causes a vigorous circulation, and each one is set in such a position that it drives the water before it from the gill-chamber into one of the water pores, and so into one of the water tubes inside the gill; and as these are filled they overflow into the cloaca and fill that. Ifthe mantle were closed, all the water would soon be pumped out of the gill-chamber into the cloaca, but you remember that an oyster at rest always has the mantle open. As fast as the gill-chamber is emptied by the cilia, fresh water streams in from THE OYSTER. 37 outside, to be, in its turn, driven through the water pores into the water tubes, and through them into the cloaca, where it is driven out between the open shells and away from the oyster. So much for the gills as organs for maintaining a current of water. We come now to the way in which they procure food. | The food of the oyster consists of microscopic organ- isms, minute animals and plants, which swim in the water. They are pretty abundant in all water, but those who do not work with the microscope have very erroneous ideas on the subject. When a professional exhibitor shows you, under the microscope, what he calls a drop of pure water, it is nothing of the sort. It is either acollection made by filtering several barrels _of water, or else it is a drop squeezed from a piece of decayed moss, or from some other substance in which they have lived and multiplied. Sea water is like fresh water in this respect, and an oyster must strain many gallons of water to get its daily bread; but the gills, with their hundreds of thou- sands of microscopic water pores, are most efficient strainers. The surface of the gills is covered by an adhesive excretion, for entangling the microscopic organisms contained in the water, and as this circulates over and through the gills, they stick fast like flies on fly-paper. The cilia which drive the water through the gills, push the slime, with the food which has become entangled in it, towards the mouth, which is well up towards the hinge; for it is hardly necessary to say that what the oystermen call the mouth is only the opening between the halves of the mantle. 38 THE OVS TER. On each side of the mouth, Plate II, m, there is a pair of fleshy organs, Plates I and II, w, called the lips, although they are more like mustaches than lips, for they hang down on each side of the mouth. One on the right is joined to one on the left, above the mouth, while the other two are joined below it, so that the mouth itself lies in a deep groove or slit between the lips. The ends of the gills fit into this groove, and as the cilia slide the food forward, it slips at last between the lips and slides into the mouth, which is always open. As this process is going on whenever the oyster is breathing, the supply of food is continuous, and while it consists, for the most part, of invisible organisms, the oyster’s stomach is usually well filled. It is not necessary to describe the oyster’s stomach and intes- tine, and dark-colored liver, as these will be under- stood from the figure. The chief purpose of this anatomical sketch is to show the wonderful way in which the gills of the oyster fit it for gathering up the microscopic life of our bay, and for turning it into valuable human food. Looked at from this point of view, the minute anatomy of the animal becomes emi- nently practical, as it enables us to understand its true relation to man. In view of the very exceptional fertility of the bay, and its boundless capacity for producing microscopic vegetation, the immense importance of an animated strainer perfectly adapted for filtering very great quantities of water, for gathering up the microscopic life which it contains, for digesting and assimilating it, and for converting it into food of the most attractive THE OYSTER. 39 and nutritious character, cannot be overestimated; but after we have studied the embryology of the oyster, we shall understand why the natural oysters alone can never utilize all the resources of our waters. We shall see why it is that the oyster is so well fitted for domestication and cultivation, and why the culti- vation of oysters will render the Chesapeake Bay in-, comparably more valuable than it has ever been, even before our natural beds began to deteriorate. 40 THE OYSTER. PLATE AE (Drawn by J. L. KELLoGG.) FicurRE 1. A diagram to show the double-w-like arrangement of the eight leaves forming the four gills. The gill-chamber of the mantle is supposed to be on the right and the cloacal chamber on the left. w is the opening of a water tube. FiGuRE 2. A very highly magnified view of a cross- section of two of the gill ridges, to show the blood channels, and the gill-cilia c, c. Figure 3. A highly magnified cross-section of part of a gill, including one water tube, w, and the parti. tions, a, a, between it and the adjacent tubes. 7,7,7 the ridges, f, p the water pores. PLATE. ith PeamoOoY Ss lhR Sioa es ca nT. tek Bui “- = i= = oO a =) = Ql o z THE OYSTER. AS In the third generation we should have eight million times this or 512,000,000,000,000,000,000. “ In the fourth, 4,090,000,000,000,000,000,000,000,000. In the fifth, 3 3,000,000,000,000,000,C00,000,000,000,- 000,009 female oysters, and as many males, or, in all, 66,000,009,000,000,000,000,000,000,000,000,000, 23 Now, if each oyster fill eight cubic inches of space, it would take 8,009,090,000,000,000,090,000,000,000,- ’- ~000,000 to make a mass as large as the earth, and the fifth generation of descendants from a single’ female oyster would make more than eight worlds, even if each female laid only one brood of eggs. As the oyster lives for many years, and lays eggs each year, the possible rate of increase is very much greater than that shown by the figures. The waste of oyster eggs through lack of fertiliza- tion is simply inconceivable, but it is possible to fer- tilize them artificially by mixing the eggs and the male cells in a small quantity of water, where they are certain to come into contact with each other. In this way about 98 per cent of the eggs may be saved and made to produce young oysters, and I have had at one time in a small tumbler of water a number of active and healthy oysters, greater, many times, than the whole human population of Maryland. If several oysters are opened during the breeding season, which varies according to locality and climate, as will hereafter be shown, a few will be found with the reproductive organ greatly distended and of a uniform opaque-white color. These are oysters which are spawning or ready to spawn, that is, to discharge their eggs. Sometimes the ovaries are so gorged a 46 THE OYSTER, that the ripe eggs ooze from the openings of the oviducts before the mass is quite at the point of being discharged. If the point of a knife be pushed into the swollen ovary, a milk white fluid will flow out of the cut. Mixing a little of this with sea water, | and placing it on a slide underneath a cover, a lens of 100 diameters will show, if the specimen is a female, that the white fluid is almost entirely made up of irregular, pear-shaped, ovarian eggs, each of which contains a large, circular, transparent, germinative vesicle, surrounded by a layer of a granular, slightly opaque yolk. Perfectly ripe eggs will be seen to be clean, sharply defined, and separate from each other. If the specimen be male, a glance through the micro- scope shows something quite different from the fluid of a female. There are no large bodies like the eggs, but the fluid is filled with innumerable numbers of minute granules, which are so small that they are barely visible when magnified 100 diameters. They are not uniformly distributed, but are much more numerous at some points than at others, and for this reason the fluid has a cloudy or curdled appearance. By selecting a place where the granules are few and pretty well scattered, very careful watching will show that each of them has a lively, dancing motion, and examination with a power of 500 diameters will show that each of them is tadpole-shaped, and consists of a small, oval, sharply defined ‘‘ head,” and a long, deli- cate “ tail,” by the lashing of which the dancing is pro- duced. These are the male cells, whose union with the eggs or ova of the female is necessary to the fer- tilization of the latter, and the consequent hatching of living oysters. THE OYSTER, Mey, The number of male cells which a single male will yield is great beyond all power of expression, but the number of eggs which an average female will furnish may be estimated with sufficient exactness. An un- usually large American oyster will yield nearly a cubic inch of eggs, and if these were all in absolute contact with each other, and there were no portions of the ovaries or other organs mixed with them, the cubic inch would contain 500°, or 125,0c0,000. Di- viding this by two, to allow for foreign matter, inter- spaces and errors of measurement, we have about 60,000,000 as the possible number of eggs from a single very large oyster. I have shown that, by mixing eggs extracted from a female with male cells, it is an easy matter to secure their union in a watch crystal or in a glass beaker. The body of the oyster, like that of all animals, except the very simplest, is made up of organs, such as the heart, digestive organs, gills and reproductive organs, and these organs are at some period in the life of the oyster made up of microscopic cells. Each of these consists of a layer of protoplasm around a central nucleus, which, in the egg, is a large, cir- cular, transparent body, known as the germinative vesicle. Each cell of the body is able to absorb food, to grow, and to multiply by division, and thus to con- tribute to the growth of the organ of which it forms a part. The ovarian eggs are simply the cells of an organ of the body, the ovary, and, so far as the micro- scope shows, they differ from the ordinary cells only in being much larger and more distinct from each other ; and they have the power, when detached from 48 THE OYSTER. the body, of growing and dividing up into cells, which shall shape themselves into a new organism like that from whose body the egg came. Most of the steps in this wonderful process may be watched under the microscope, and, owing to the ease with which the eggs of the oyster may be obtained, this is a very cood egg to study. About fifteen minutes after the eggs are fertilized Plate IV, Fig. 1, they will be found to be covered with male cells. In about an hour the egg will be found to have changed its shape and appearance. It is now nearly spherical, and the germinative vesicle is no longer visible. The male cells may or may not still be visible upon the outer surface. In a short time a little transparent point makes its appearance on the surface of the egg, increases in size, and soon forms a little, projecting, transparent knob—the polar elobule. Recent investigations tend to show that while these changes are taking place, one of the male cells pene- trates the protoplasm of the egg and unites with the germinative vesicle, which does not disappear, but divides into two parts, one of which is pushed out of the egg and becomes the polar globule, while the other remains behind and becomes the nucleus of the developing egg, but changes its appearance so that it is no longer conspicuous. _The egg now becomes pear-shaped, with the polar globule at the broad end of the pear, and this end soon divides into two parts, so that the egg is now made of one large mass and two slightly smaller ones, with the polar globule between them. Plate IV, Fig. 2. THE OYSTER. 1 AG The later history of the egg shows that at this early stage it is not perfectly homogeneous, but that the protoplasm which is to give rise to certain organs of the body has separated from that which is to give rise to others. If the egg were split vertically we should have what is to become one half of the body in one part and the other half in the other. The single spherule at the small end of the pear is to give rise to the cells of the digestive tract of the adult, and to those organs which are to be derived from it, while the two spheres at the large end are to form the cells of the outer wall of the body and the organs which are derived from it, such as the gills, the lips and the mantle, and they are also to give rise to the shell. The upper portion of the egg soon divides up into smaller and smaller spherules, Plate IV, Figs. 3, 4, 5, until we have a layer of small cells wrapped around the greater part of the surface of a single large spherule. This spherule now divides up into a layer of cells, and at the same time the egg, or rather the embryo, becomes flattened from above downward, and assumes the shape of a flat, oval disk. In a sectional view it is seen to be made up of two layers of cells; an upper layer of small transparent cells, which are to form the outer wall of the body, and which have been formed by the division of the spherules which occupy the upper end of the egg, and a lower layer of much larger, more opaque cells, which are to become the walls of the stomach, and which have been formed by the division of the large spherule. This layer is seen in the section to be pushed ina little toward the upper layer, so that the lower surface 3 50 THE OV STEER, of the disk-shaped embryo is not flat, but very slightly concave. This concavity is destined to grow deeper until its edges almost meet, and it is the rudimentary digestive cavity. A very short time after this stage has been reached, and usually within from two to four hours after the eggs were fertilized, the embryo under- goes a great change of shape. Plate IV, Fig. 6. A circular tuft of long hairs, or cilia, now makes its appearance at what is thus marked as the anterior end of the body, and as soon as these hairs are formed they begin to swing backward and forward in sucha way as to constitute a swimming organ, which rows the little animal up from the bottom to the surface of the water, where it swims around very actively by the aid of its cilia. This stage of development, which is of short duration, is of great importance in rearing the young oysters, for it is the time when they can best be siphoned off into a separate vessel and freed from the danger of being killed by the decay of any eggs which may fail to develop. On one surface of the body at this stage there is a well-marked groove, and when a specimen is found ina proper position for examination, the opening into the digestive tract is found at the bottom of this groove. The embryo now consists of a central cavity, the digestive cavity, which opens externally by a small orifice, the primitive mouth, and which is surrounded at all points, except at the mouth, by a wall which is distinct: from the outer wall of the body. Around the primitive mouth these two layers are continuous with each other. This stage of development, in which the embryo consists of two layers, an inner layer surrounding a THE OYSTER. BT cavity which opens externally by a mouth-like open- ing, and an outer layer which is continuous with the inner around the margins of the opening, is of very frequent occurrence, and it has been found, with modifi- cations, in the most widely separated groups of animals, such as the starfish, the oyster, and the frog, and some representatives of all the larger groups of animals, ex- cept the Protozoa, appear to pass during their develop- ment through a form which may be regarded asa more or less considerable modification of that presented by our oyster-embryo. This stage of development is known as.the gastru/a stage. Certain full-grown animals, such as the fresh-water hydra and some sponges, are little more than modi- fied gastrulas. The body is a simple vase, with an opening at one end communicating with a digestive cavity, the wall of which is formed by a layer of cells, which is continuous around the opening with a second layer, which forms the outer wall of the body. This fact, together with the fact that animals of the most widely separated groups pass through a gastrula stage of development, has led certain naturalists to a gener- alization, which is known as the “ gastrula theory.” This theory or hypothesis is that all animals, except the Protozoa, are more or less direct descendants of one common but very remote ancestral form, whose body consisted of a simple two-walled vase, with a central digestive cavity opening externally at one end of the body. Soon a small, irregular plate makes its appearance on each side of the body. These little plates are the two valves of the shell, and in the oyster they are sepa- 52 THE OYSTER. PLATE 1Y¥. THE DEVELOPMENT OF THE OYSTER. All the figures are highly magnified and all except Figure 10 are autograph reproductions from the author’s drawings from nature. Figure 10 is copied from a figure by R. T. Jackson in the American Naturalist, December, 1890. FIGURE I. A newly laid egg with the male cells fastened to its surface. FIGURE 2. Oyster embryo, about two and a half hours old. FicgurRE 3. An embryo about fifteen minutes older than Figure 2. Figure 4. An embryo about fifteen minutes older than Figure 3. Ficure 5. An embryo about twenty minutes older than Figure 4. Figure 6. An embryo about thirty hours old, at the beginning of the swimming stage. FiGuRE 7. Stage in which the first traces of the shell make their appearance. FicuRE 8. A swimming oyster about three days old. Ficure 9. A swimming oyster about six days old. FiGurE 10. An oyster which has become attached. A.Hoen &Co.Lith THE OYSTER. eS rated from each other from the first, and make their appearance independently. Soon after they make their appearance the embryos cease to crowd to the surface of the water, and sink to various depths, although they continue to swim actively in all directions, and may still be found occasionally close to the surface. The region of the body which carries the cilia now becomes sharply defined, as a circular, projecting pad, the velum, Figs. 7, 8 and 9, and this is present and is the organ of locomotion, at a much later stage of development. The two shells grow rapidly and soon become quite regular in outline, but for some time they are much smaller than the body, which projects from between their edges, around their whole circumference, except along a short area, the area of the hinge, upon the dorsal surface, where the two valves are in contact. The two shells continue to grow at their edges, and soon become large enough to cover up and project a little beyond the surface of the body, and at the same time muscular fibres, Fig. 9, make their appearance. They are so arranged that they can draw the edge of the body and the velum in between the edges of the shell. In this way that surface of the body which lines the shell becomes converted into the two lobes of the mantle, and between them a mantle cavity is formed, into which the velum can be drawn when the animal is at rest. While these changes have been going on over the outer surface of the body, other important internal modifications have taken place. Soon the outer wall of the body becomes pushed inward, to form the mouth. The digestive cavity now 54 THE OYSTER. becomes greatly enlarged, and cilia make their appear- ance upon its walls; the mouth becomes connected with the chamber which is thus formed, and which becomes the stomach, and minute particles of food are drawn in by the cilia, and can now be seen inside the stomach, where the vibration of the cilia keep them in constant motion. Up to this time the animal has developed without growing, and is scarcely larger than the unfertilized egg, but it now begins to increase in Size. Soon after the mouth has become connected with the stomach this becomes united to the body wall at another point a little behind the mouth, and a second opening, the azus, is formed. The tract which connects ‘the anus with the stomach lengthens and forms the intestine, and, soon after, the sides of the stomach become folded off to form the two halves of the liver, and various muscular fibres now make their appear- ance within the body. Such is the scientific history of the oyster-embryo. The practical utility of the knowledge, however, to the most of us, is that the American oyster lays a vast number of eggs, but that they are exposed to dangers so constant and innumerable, that under ordinary con- ditions few ever come to life, or at any rate succeed in living long enough to anchor themselves and take on the protection of shells. This is only another exam- ple of a fact well known to naturalists. The number of eggs laid, or even of individuals born, has very little to do with the abundance of a species, which is de- termined, mainly, by the external conditions to which it is exposed. THE OVSTER. Bee = LIFE OF THE YOUNG OystTER.—The young Ameri- can oyster leads a peculiarly precarious life, since it is first thrown out an unfertilized egg, and the chance that it will immediately meet with a male cell must be very slight; yet if it does not it will perish, for the sea-water soon destroys unimpregnated eggs. Having by good chance become fertilized by meet- ing a male cell, the next period of great danger is the short time during which the embryos swarm to the surface of the water. They are so perfectly de- fenseless, and so crowded together close to the sur- face, that a small fish, swimming along with open mouth, might easily swallow, in a few mouthfuls, a number equal to a year’s catch. They are also exposed to the weather, and a sudden cold wind or fall in temperature, such as occurred several times during our experiments, killed every embryo. The number which are destroyed by cold rains and winds must be very great indeed. As soon as they are safely past this stage, and scatter and swim at various depths, their risks from accidents and enemies are greatly diminished. Up to this point, which is reached in from twenty-four hours to six days, there is no difficulty in rearing them in an aquarium, provided uniform warm temperature be preserved. Although I failed to keep the young oysters alive until they were large enough to handle and plant, my experiments showed the possibility of rearing them in unlimited numbers, so soon as some practical method of preserving them alive during their infancy should be discovered. 56 THE OYSTER. The next great step in this direction is due to Lieut. Winslow. While I was carrying on my experiments at Crisfield, in 1879, this officer was engaged in ex- amining the oyster-beds of Tangier Sound, and he made frequent visits to the laboratory and learned my methods. The next year, while stationed at Cadiz, Spain, on naval duty, he repeated the experiments with Portuguese oysters, and showed that these, like the American oysters, have the sexes separate, and that the eggs are fertilized in the water; that the young are independent of parental protection, and that they can be artificially reared like the oysters of our waters. His results were given in a paper which was read before the Maryland Academy of Sciences, in November, 1881, and this paper was afterwards printed in the American Naturalist. The next great step was the discovery of a simple and practical method of rearing the young oysters which are hatched artificially, and this step, which completes the solution of the problem, and puts it within our power to remove forever all danger of the extermination of the oyster, is the contribution of a French naturalist, M. Bouchon-Brandeley. This author, like Winslow, experimented with the Portu- guese oysters, and while he does not seem to have been acquainted with Winslow’s paper, he arrived at - the same conclusion, and showed that the sexes are separate, that the eggs are fertilized in the water, and that the young may be hatched artificially; but he also went one step further, and succeeded in rearing in this way a very great number of seed-oysters fit for planting. THE OYSTER, ae His paper was translated and printed April 19, 1883, in the Bulletin of the U.S. Fish Commission. The following extracts from this translation show the char- acter of the methods which are employed, and the re- sults which were obtained: “The mollusc, known under the name of the Portu- guese oyster, has not existed upon our coast for more than thirty years. It is superfluous to here describe their external form, in that it does not recall that of O. edulis. In respect to sexuality, the difference be- tween these two molluscs is very great; most radical. Ostrea edulis is hermaphrodite; O. angulata is uni- sexual or dicecious. We have opened more than 10,000 in all phases of reproductive activity, and we have not seen a single one of the latter of which the sex was doubtful. They were all either exclusively male or exclusively female.” ‘““No less marked is the difference in the mode of reproduction. The eggs of the common oyster are fecundated within the valves of the parent, apparently within the openings of the oviducts; those of the Portuguese species on the bosom of the waters. The first cannot develop outside of the incubatory cavity of the parent; the second undergo their development in the open currents. The larve of O. edudis, in order to live, develop and attain the errant or pelagic stage of their existence, are dependent upon the albuminous liquid secreted by the mother; those of O. angulata, more vigorous, more independent, and altogether more active, transport themselves into the living waters, to there take up the nutritive matters which are necessary to transform them into spat. 58 THE OYSTER. “When aiter two years we had Jearned for a cer- tainty that the sexes of Ostrea angulata were confined to separate individuals, we immediately conceived that it was possible to artificially fertilize the eggs of this mollusc. We were likewise encouraged by the experi- ments which Brooks, of the Johns Hopkins Univer- sity of Baltimore, had made upon Ostrea virginica, likewise unisexual, and which had enabled him to fol- low the development of the embryos to the formation of the shell.” “M. Tripota, one of the veteran ostraculturists, and at the same time one of the most competent, very will- ingly, at the request of the commissioner, M. Jouan, ‘placed at our disposal, with a grace and disinterested- ness for which we are under great obligations, two beautiful unsubmersible claires, which received fresh water for several days during the spring tide, and which were soon arranged for our use by means of some slight internal alterations. Separated from each other by a straight, massive wall of earth, these two ponds, with an area of about 100 meters each, and an average depth of 80 centimeters to t meter (27 inches to 3 feet), were placed in communication by means of a pipe, which was closed at either end by a sponge, to keep out any sediment in suspension in the water. In this manner all doubt as to the origin of the spat which was collected was guarded against.” “For the outlet,an apparatus consisting of a wall of fine sand confined by boards permitted the water to percolate through it, but prevented the embryos from escaping with it. The lowermost claire only was utilized in our experiments. The uppermost claire, in THE OYSTER. 59 which we stored the water whenever it was possible, served as a reservoir from which to decant, the supply pipe allowing nothing to pass into the experimental claire except clear water.” “This arrangement completed, the products of arti- ficial fecundation, impregnated in various ways, were poured into the experimental reservoir. This took place in the second week in June.” “According to our belief, we hoped to find some spat on the collectors placed in the experimental claire at the end of the same month or by the beginning of the month of July. M. Tripota, who had taken an ac- tive part in the work, and who took my plate in my absence, continued to supply the claire with fertilized eggs and mobile embryos.” ‘The time assigned for experimental proof having arrived, the collectors were examined, but they did not bear any apparent trace of spat. This was a de- ception. Meanwhile, thinking that the season for the fry had not yet begun in the Gironde, we expected happier results from our final experiments. The claire was emptied, and some modifications were introduced in the management of the water, and from day to day mixtures of the generative products were again poured into the claire.” “On the 24th July the tiles were examined. This time all had spat attached. It was therefore evident that the first experiments had not been as unsuccessful as we had supposed. In fact, each of the tiles im- mersed had young oysters attached, to the number of twenty or thirty, measuring about a centimeter (two- fifths of an inch) in diameter. This spat was evidently 60 SHE OYSTERS derived from the spawn put out during the end of June or the commencement of July; but their small size had prevented us from seeing them when the in- spection was made at that time. On the 24th July we had specimens about a month old. This fact was all the more remarkable, in that, up to that same time, the collectors placed in the Gironde, in the very center of the spawning beds, did not show a sign of spat.” “The problem which we had put before ourselves had accordingly received, from a scientific and practi- cal point of view, a solution in conformity with our hopes. It was possible to obtain spat by means of artificial fecundation, and to capture it in confined waters. And we no longer had the slightest reason to doubt the identity of that which had caught on our tiles, nor to suppose that it came from the waters without, since there was as yet none apparent in the Gironde, and the tiles in the upper claire, which served to feed the experimental claire, were completely exempt.” “If in forcing nature’s processes we arrive at the same result, that is, provoke the birth of the young before the time of the normal emission of the spawn, there is a!l the more reason for us to suppose that we have an excellent means to aid and favor her.” Such, briefly sketched, is the early history of the oyster, and the process of rearing oysters artificially; but its development is of vastly greater interest than a mere description would indicate. It contains enough material for philosophical meditation and for scientific research to occupy many generations of students, and the practical importance of a knowledge THE OYSTER. 61 of its embryology does not end with the facts, and we shall find among the purely speculative deductions which naturalists have drawn from it much which will help us to appreciate and to utilize the oyster as a food resource. When the egg is first laid it is a little globule of living matter, with no visible indication of the struc- ture of an oyster, although it is a potential oyster, and is destined to build up, slowly, but surely, from the vegetable food in the water, every part of a complicated adult like that which produced it. It is not, however, an oyster in miniature. Our utmost means of observ- ation do not reveal in it anything whatever, at all like the structure of the adult. Such structure as the microscope does show is the structure of a cell, like one of those which make up the oyster’s body, and the process of development is at first simply a process of cell-multiplication, not the unfolding and enlarge- ment of a rudimentary oyster. If we compare an adult oyster to a brick house, then the egg corre- sponds to a brick, not to a little house, and develop- ment begins by cell-division or the multiplication of bricks rather than by the growth ofa little house. So far as the microscope tells us, there is nothing like an oyster in the egg, yet it must be there in some form, for an oyster’s egg never becomes anything except an oyster. If we knew only the higher animals we might suppose that the development of an egg is guided in some way by the influence of the parent; but there can be no such directing influence in the case of the oyster egg, for this is thrown on the world to take care of itself before its development begins. The 62 THE OYSTER. force which causes it to become an oyster cannot come from parental influence, nor can it be due to anything in the external world, for hosts of other animals live in the water with the oyster, and side by side with the oyster eggs float those of starfishes, annelids and countless other animals, all exposed to exactly the same external conditions, and yet each develops after its own kind, and builds up cell by cell an animal like its parent. There is no escape from the belief that the directing force is in the egg itself, and when the microscope was first used to study the early stages of animals, naturalists thought they could discover in the egg the little image in miniature of the future animal, and they taught that this exists in a perfect but dormant and unexpanded condition in the egg, and that the process of development is nothing more than the growth and expansion of this germ. More careful study with better instruments and im- proved methods has failed to verify this supposed dis- covery, and so far as our present means of research go, they reveal nothing whatever in the egg which resembles the adult in any particular, nor do they show anything in the oyster egg which should cause it to become an oyster rather than some other animal. The testimony of all observers, based upon the study of all kinds of animals, is that the egg is not compara- ble to the adult in miniature, but to one of the con- stituent cells of its body; that the development of an egg is not the unfolding of a germ, but a process of cell-multiplication. The egg divides into a number of cells like itself, and these divide and subdivide until THE OYSTER. 63 they are very numerous. At first they are alike, but they soon become specialized in different directions, and thus gradually build up the tissues and organs of the body. These gradually acquire their final form, but they are at first simple cell-aggregates, out of which the complex whole is finally built up by the combination and organization of the simple units, somewhat as a regiment of soldiers is organized from a mob of men. The directing influence must be in the egg, although it has so far eluded all efforts to discover it. The adult oyster, with its complicated organs, so beautifully and wonderfully fitted to its needs, and so intricately re- lated to each other as parts of a complex whole, is a most interesting subject for study. No one can study the structure of any animal without admiring the fit- ness of all its parts for their work. As we trace out the use of one part after another, and the oyster be- comes intelligible to us, its completeness impresses us more and more; but if we are thus impressed by the study of a complicated mechanism, adapted for bring- ing about complicated results, what must be our re- flections when we find in the egg the capacity for pro- ducing the same results without any visible mechanism whatever! Everything which seems so admirable in the adult, when it is the result of organization, exists potentially in the egg, where there is no discoverable organization; and if the result of the process of de- velopment, the complete oyster, is wonderful and in- teresting, how much more wonderful is the process itself. To those who can picture in imagination its hidden structure, an egg is one of the most marvel- 64 THE OYSTER. lous bodies in the universe. Elsewhere we have com- plex results from complex means, but here we have the most complex of all things, a living body, arising without any visible machinery. Even after the cells which result from the multipli- cation of the egg cell become pretty numerous and begin to shape themselves into a complicated body, this at first bears no close resemblance to an oyster, and while the ultimate outcome is an oyster like the parent, I should give my readers a very incomplete and erroneous picture of the history of its develop- ment if I did not lay stress upon*the very remarkable fact that this result is not reached directly. The mature oyster is a sedentary animal with no power of locomotion. It lies on its side, soldered to the bottom by the outside of the deep spoon-shaped left shell, for which the flat right shell forms a mova- ble lid. Its gills are very complicated organs, adapted for drawing into the fixed shell a steady current of water, and they pour into the open mouth of the animal a constant stream of food, so that eating goes on as un- interruptedly as breathing, and is just as much beyond the control of the animal. The adult oyster makes no efforts to obtain its food, it has no way to escape from danger, and after its shell is entered it is per- fectly helpless and at the mercy of the smallest enemy. So far as active aggressive life goes it is almost as inert and inanimate as a plant, and its life is purely vegetative. This is the adult oyster. The young oyster is very different. It is an active animal, swim- ming from place to place. Its gills are not leaf-like, and they do not divide the mantle-chamber into two THE OYSTER. 65 parts. They are nothing but breathing organs, and are simple finger-like tentacles which hang down into the water. There is no gill-current as there is in the adult, and the young oyster must find its own food by swimming through the water. Its two shells are also exactly alike, and therefore quite different from those of the adult. The egg therefore tends, at first, to build up an animal which differs greatly from the adult, in struc- ture as well as in habits, and naturalists believe, as I have already said, that our modern oysters are the descendants of an ancient form which was not seden- tary, and the egg at first exhibits a decided tendency to build up this ancestor rather than an oyster. Some of you may ask how we know that the remote ancestors of the oyster were different from modern oysters. This is a fair question, and I will try. to give an outline of the reasons for this opinion, and perhaps an illustration may help us. When a Baltimorean visits New York or Savannah or Boston or Chicago, he finds that while the people of these cities talk the same language, it is with a difference. They all talk what they call English, but when an Englishman comes among us he tells us that it is not English, and it is quite clear to an American who visits England that the people there do not know how to talk United States, although the differences are trivial ones, of accent and idiom, and do not in the least hinder conversation. If, however, we cross the narrow strip of water which separates England from the German empire, we find a strange language, which at first seems totally 3* 66 THE OYSTER, unfamiliar and unintelligible, but as our ears become more accustomed to the strange sounds we find many which are not as unintelligible as they seemed at first. When a German talks of his water, his mutter, his bruder, his schwester, when he asks us to share his brod und butter, or offers us a glas wasser, we need no dictionary to tell us what he means. We know that the Americans and the English of to-day are descended from common ancestors, only a few generations back, from whom they have inherited their common language, and we know from literature that this was not exactly the same as modern English or modern American, and history also tells us that still further back, Anglo-Saxon and modern German had a common starting-point. Philologists therefore make use of the resemblances between languages to trace out their origin, and whenever they find that two or three languages have a common plan, a funda- mental similarity of grammatical structure, they be- lieve that they are divergent modifications from a common starting-point. In some cases printed lan- guage has preserved an actual history of the process, but in other cases, where there is no such history, the student of comparative grammar forms his conclusions by comparison; and, even where the primitive lan- guage is lost, he is able to reconstruct it in part, for he knows that it must have been characterized by all the features which its derivatives have in common. Now, animals exhibit resemblances of very much the same character as those between languages, and when we find that several representatives of a great group are constructed upon the same fundamental THE OYSTER. 67 plan, we infer, just as the philologist does, that they are the divergent descendants of a common ancestor, from whom they have inherited the features which they have in common. The philologist is sometimes able to verify his con- clusion by the proofs which have been preserved in books and inscriptions, and he regards this as evidence that, in other cases where no such record is preserved, his results are equally trustworthy. Occasionally the student of comparative anatomy, like the student of comparative grammar, finds a fossil form which unites in itself the characteristics of several widely separated descendants, and is thus enabled to test and to verify the conclusions which he has reached by comparative study. In this way, through the study of details too numer- ous and minute to be described here, it can be shown that the oyster is descended from a mollusc which was furnished with locomotor organs and sense organs, and which wandered about in search of food, and had altogether a much wider and more varied life than that of the oyster. Its gills were very simple and were nothing but breathing organs, and the many uses which they serve were provided for by distinct organs. Very long ago, as we measure time, but quite late in the history of the mollusca, as the continental areas were elevated and became covered with terrestrial vegetation, and fringed by bays and sounds of brackish water, it gradually became modified in such a way as to fit it for life in these estuaries. Its locomotor organs and its organs for discovering and capturing food were gradually lost, as it learned to feed upon the 68 THE OYSTER. microscopic life of the mud-flats. The gills then gradually became modified and fitted for maintaining the circulation of water, and for filtering out the minute food particles it contains. Food is most abundant on the muddy bottom, but in estuaries this is so deep and soft that a locomotor animal would sink and smother in it, so the oyster has gradually become converted into a fixture, and has learned to fasten itself when young to something firm enough to keep it out of the soft mud, but near enough to it to be within easy reach of the vast supply of food which it affords. Asa fixed animal does not need to have the two sides of its body balanced, the fixed oyster has become one-sided, and has thus been still better fitted for its peculiar mode of life. These changes, while they are on the whole ad- vantageous, since they enable the oysters to avail themselves of inexhaustible supplies of food, are not without disadvantage. The oyster has become so perfectly adapted fora life on those hard bodies which occur in the soft mud of estuaries, that it cannot live anywhere else, and the young oysters which do not find a proper home soon die. In shallow bays and sounds hard substances are rare and far apart, and many young oysters must perish from inability to find a proper resting place. To meet this danger the oyster’s birth rate has been enormously increased, so that among its innumerable descendants some few may be able to find proper homes, and may grow up to maturity in their turn, CHATTER: iv. THE ARTIFICIAL CULTIVATION OF OYSTERS. If the Chesapeake Bay is as rich in food for oysters as I have asserted, and if the oyster multiplies at sucha very high rate of increase, how can our oyster supply be in any danger, or how can there be any need for aid from man in order to maintain and develop the oyster-beds ? At first sight it does not seem possible that an animal which is protected from enemies by a strong stony shell, and which is capable of giving rise to several million eggs each season, can be in any danger of extermination, and it seems as if the oyster ought to be able to hold its own in the struggle for existence, and to increase and multiply in spite ofadverse circum- stances. 3; We should rather expect to find the whole bottom of the bay paved with oysters, and for many years, the statement that there is any need for measures to pre- vent the destruction of our natural beds and the total extermination of our oysters has been met with ridicule, and it has been flatly contradicted by persons whose qualifications for expressing an opinion would seem to be very great. In 1884 a commissioner, who had been appointed by the General Assembly of the State of Maryland to examine and report upon the condition of the oyster- 70 THE OYSTER. beds of the State, with such recommendations as might seem advisable for the protection of the oyster in- dustry, reported that “he has no fears but what the “present oyster supply will be kept up to its present “standard, and within a few years increased. The ‘supply is now greater, probably, than ever before, and ‘the prices higher, taking the season through. It is the “increased demand and consequent higher prices that “has created the oyster panic in the public mind toa “creat extent. The undersigned is not fully in accord “with the majority report in the belief that the oyster “ property of the State is in imminent danger of com- “plete destruction. This is not likely, unless we fail “to give the interest even ordinary care and protection. “ Whilst in some localities the beds have been greatly “ depleted by overwork, and in others destroyed chiefly “in shallow water tonging ground, the beds and bars as “a rule have been greatly enlarged by working them. ~“ |. The oyster supply of our waters, taken as a “whole, it is likely is as large as ever it was.” In view of this statement, and’ similar ones from other men who have- enjoyed every opportunity to learn the truth of the matter and to qualify themselves to speak upon it with authority, it is not at all strange that there should be much confusion in the public mind, and that the prejudiced statements of those who have profited by the destruction of the public property should outweigh the testimony of disinterested students. The history of the oyster-beds of Europe, and of those in many of the Northern States, should have been enough to warn us, years ago, of the need for the THE OYSTER, Va protection and development of our own beds, but our people have been too confident of the inexhaustible vitality of our own beds to heed the warning. So long as the consumption of oysters was restricted to regions in the immediate vicinity of the bay, the number of oysters which could be taken from each bed and put upon the market each season was so small that it could be furnished without taxing the beds, but more than ten years ago, November, 1879, I called attention to the fact that the perfection of our facilities for packing and transporting oysters had produced such a great demand, that the danger of destroying our best beds was growing greater every day,and was keeping pace with the growth of our population and the improvements in transportation, and I called the attention of those who believe that the supply is suffi- cient for all demands, to the history of other countries. No one who is familiar with the history of the oyster- beds of other parts of the world can be surprised at the deterioration of our own beds. Everywhere, in France, in Germany, in England, in Canada, and in all northern coast states, history tells the same story. In all waters where oysters are found at all they are usually found in abundance, and in all of these places the residents supposed that their natural beds were inexhaustible until they suddenly found that they were exhausted. The immense area covered by our own beds has en- abled them to withstand the attacks of the oystermen for a much longer time, but all who are familiar with the subject have long been aware that our present sys- tem can have only one result—extermination. An estimation of the effect of excessive fishing may a THE OYSTER. be formed by examining its results upon such beds in England and France as have records upon the sub- ject. The most instructive of these are the records of the production of the beds of Cancale Bay, on the northwest coast of France, which extend over a period of sixty-eight years—from 1800 to 1868. The beds in the bay comprise an area of about 150 acres, and from 1800 to 1816 produced from 400,000 to 2,400,- 000 a year. ‘This, however, was the period of the Na- poleonic wars, and the fishing was much disturbed by the presence of the English cruisers. During this time the beds became so thickly stocked that the oysters were said to be a yard thick in some places. After the close of the war the fishing improved, and the oysters were removed in larger and increasing numbers until 1843. From 1823 to 1848 it was supposed that the dredgers were living upon the oysters accumulated during the period of enforced rest from 1800 to 1816. In 1817 the number of oysters produced was 5,600,000, and until 1843 there was a constant increase, the num- ber taken in the latter year being 70,000,000. In 1848 it was 60,000,000 ;.thenceforward there was a constant decrease. From 1850 to 1856 the decrease was from 50,000,000 to 18,000,000, supposed to be the effect of overdredging. From 1859 to 1868 the decrease was from 16,000,000 to 1,079,000; the oysters having almost entirely disappeared from the beds, though, on account of the suffering condition of the inhabitants of the shores, it was almost impossible to prevent it. In 1870 there was a complete wreck of the bottom, which could only be remedied by a total prohibition of the fisheries for several years. THE OYSTER. 73 From the beds of the districts of Rochefort, Mar- ennes, and Island of Oleron, on the west coast of France, there were taken in 1853-54 10,000,000 oys- ters, and in 1854-55 15,000,000. On account of exhaustive fishing only 400,000 could be obtained in 1863-64. According to the testimony of Mr. Webber, mayor of Falmouth, England, about 700 men, working 300 boats, were employed in a profitable oyster fishery in the neighborhood of Falmouth until 1866, when the old laws enforcing a ‘‘close time” were repealed, under an impression that, owing to the great produc- tive powers of the oyster, it would be impossible to remove a sufficient number to prevent the re-stocking of the beds. Since 1866 the beds have become so im- poverished from excessive and continual fishing, that in 1876 only 40 men and 40 boats could find employ- ment, and small as the number is, they could not take more than 60 or 100 oysters a day, while formerly, in the same time, a boat could take from 10,000 to 12,000. According to the statement of Mr. Messum, an oys- ter dealer and the secretary of an oyster company at Emsworth, England, made before the Commission for the Investigation of Oyster Fisheries, in May, 1876, there were in the harbor of Emsworth, between the years of 1840 and 1850, so many oysters that one man in five hours could take from 24,000 to 32,000. In consequence of over-fishing, in 1858 scarcely ten vessels could find loads, and in 1868 a dredger in five hours could not find more than ¢wenty oysters. The oyster fisheries of Jersey, in the English Chan- 4 74 THE OYSTER. nel, at one time afforded employment to 400 vessels. In six or seven years the dredging became so exten- sive and the beds so exhausted that only three or four vessels could find employment, and the crews of even that small number had to do additional work on shore in order to support themselves. In view of such facts as these, no one who appreci- ates the magnitude of the oyster industry of the Chesapeake Bay can doubt that the protection of our beds is a matter of vital importance, for it is quite clear that we cannot trust to the natural fecundity of the oyster. It is well known to naturalists that the number of individuals which reach maturity in any species of animal or plant does not depend on the number which are born. The common tapeworm lays hundreds of - millions of eggs in a very short time, yet it is com- paratively rare. The number of children born to each pair of human beings during their lifetime of sixty or seventy years can be counted on the fingers, yet man is the most abundant of the large mammals. The abun- dance of a species is mainly determined by the ex- ternal conditions of life, and the number of individuals which are born has very little to do with it. In the case of the oyster, the adult is well protected against the attacks of most of the enemies which are found in our waters, by its shell, and as its food is very abundant and is brought to it in an unfailing sup- ply by the water, it is pretty sure of a long life after it has reached its adult form, but the life of the young oyster is very precarious: that of the young American | oyster peculiarly so, since it is exposed to many PRE VOY STIG. 75 enemies and accidents at the time when it is most helpless. The oyster of Northern Europe lays from one to two million eggs, while our oyster lays about ten times as many, but the protection which is afforded to the young European oyster by the shell of the parent more than balances the greater birth-rate of our oyster. The most critical time in the life of the American oyster is undoubtedly the time when the egg is dis- charged into the water to be fertilized, for the chance that each egg which floats out into the bay to shift for itself will immediately meet with a male cell is very slight, and infinite numbers of eggs are lost from this cause. The next period of great danger comes as the little embryos begin to swim and crowd to the surface of the water. They are so totally defenseless and are so close together that a little fish swimming along with open mouth may swallow thousands in a few mouthfuls, and I have found that at this time a sudden fall of temperature is fatal to them, and a cold rain may destroy millions. As soon as they are safely past this stage and have scattered and begin to swim at various depths, their danger from accidents and enemies is greatly diminished, and their chance of reaching ma- turity increases rapidly. Experiments which I carried on many years ago show that there is no difficulty in rearing them up to this point in captivity, and that in a very small aquarium millions of them may be safely carried past the most precarious part of their lives and freed from their greatest dangers. Although the mortality at their early stages is so excessive, the number of young oysters which pass 76 THE OUST Pur. through them in safety without artificial help is very great, and if there were no other dangers or uncertain- ties there would be no need of measures for their pro- tection. As they swim to and fro in the water they are carried to great distances by the tides and currents, and they reach all parts of the region of water within several miles of the parent bed. In a favorable season, any plant, or bush, or piece of driftwood which floats near an oyster-bed becomes covered with small oys- ters, although the nearest bed may be miles away; and the fact that young oysters may be thus collected in any part of our bay shows that they are distributed everywhere, and we might expect the adults to have an equally general distribution. Thisis by no means the | case, and nothing can be farther from the truth than the idea that the bottom of the oyster area is uniformly covered with oysters or ever has been, although it is quite true that oysters may be reared artificially over nearly the whole of it. The idea that it is only neces- sary to throw a dredge overboard anywhere in the oyster area, and to drag it along the bottom for a short distance in order to bring it up full, is totally errone- ous. Such a condition of things is quite within the reach of the: cultivator, but it. never exists ‘under natural influences alone. In this country, as well as in Europe, the oysters are restricted to particular spots called “banks,” or “beds,” or ‘rocks,’ which are as well defined and almost as sharply limited as the tracts of woodland in a farming country—they are so well marked that they may be laid down ona chart, or they may be staked out with buoys; and even in the best dredging grounds they occupy such an inconsiderable THE OYSTER. 77 part of the bottom that no one would have much chance of finding oysters by promiscuous dredging, in ignorance of their location. Although the young are distributed every year by the tides and currents over all parts of the bottom, the dredge seldom brings up even a single oyster outside the limits of the beds, under natural conditions. The restriction of the oysters to certain points does not depend on the supply of food, for this is every- where abundant, nor to any great degree upon the character of the watet. It is almost entirely due to the nature of the bottom. The full-grown oyster is able to live and flourish in soft mud so long as it is not buried too deeply for the open edge of the shell to reach above the mud and draw a constant supply of water to its gills; but the oyster embryo would be ingulfed and smothered at once if it were to fall on such a bottom, and in order to have the least chance of survival it must find some solid substance upon which to fasten itself, to preserve it from sinking in the soft mud, or from being buried under it as it shifts with wind and tide. In the de- posits which form the soft bottom of sounds and estuaries solid bodies of any sort rarely occur, and the so-called “ rocks” of the Chesapeake are not ledges or reefs, but accumulations of oyster shells. Examination of a Coast Survey chart of any part of the Chesapeake Bay or of any of its tributaries will show that there is usually a mid-channel, or line of deep water; where the bottom is generally soft and where no oysters are met with, and on each side of this an area where the bottom is hard, running from 78 THE OYSTER. Brae Ik she Ue Oysters fastened to the upper surface of a round boulder, which had formed the ballast of some vessel and had been thrown overboard in the bay, where the lower half had become embedded in the bottom. The figure, which is about one-fourth the size of the speci- men, shows the way in which the oyste:s grow, in dense crowded clusters, on any solid body which raises them above the mud. AUOWIYE IYSMeIBYy] Oy Y Wao A ALY 1d MALSAO HHL THE OYSTER. 79 the edge of the channel to the shore. This hard strip is the oyster area. It varies in width from a few yards to several miles, and the depth of water varies upon it from a few feet to five or six fathoms, or even more. But there is usually a sudden fall at the edge of the channel, where the oysters stop, and we pass to soft bottom. The oyster bottom is pretty continuous, ex- cept opposite the mouth of a tributary, where it is cut across by a deep, muddy channel. The solid oyster rocks are usually situated along the outer edge of this plateau, although in many cases they are found over its whole width nearly up to low-tide mark, or beyond. As we pass south along the bays and sounds of Vir- ginia and North Carolina, we find that the hard borders of the channel come nearer and nearer to the surface, until in the lower part of North Carolina there is on each side of the channel a wide strip of hard bottom, which is bare at low tide and covered with oysters up to high-water mark, although the oysters are most abundant and largest at the edge of the deep water, where they form a well-defined reef. In our own waters there is usually a strip along the shore where no oysters are found, as the depth of water is not great enough to protect them in winter. The whole of the hard belt is not uniformly covered with oysters, but it is divided up into separate oyster rocks, between which comparatively few can be found. The boundaries of a natural rock which has not been changed by dredging are usually well defined, and few oysters are to be found beyond its limits. The oysters are crowded together so closely that they can- not lie flat, but grow vertically upwards, side by side. 80 THE OYSTER. They are long and narrow, are fastened together in clusters, and are known as “coon oysters.” When such a bed is carefully examined it will be found that most of the rock is made up of empty shells, and a little examination will show that the crowding is so great that the growth of one oyster prevents ad- jacent ones from opening their shells, and thus crowds them out and exterminates them. Examination shows, too, that nearly every one of the living oysters is fastened to the open or free end of a dead shell which has thus been crowded to death, and it is not at all unusual to find a pile of five or six shells thus united, showing that number two had fastened, when small, to the open end of number one, thus raising itself a little above the crowd. After number one was killed number two continued to grow, and number three fastened itself to its shell,and so on. Usually the oysters upon such a bed are small, but in some places shells twelve or fourteen inches long are met with. The most significant characteristic of a bed of this kind is the sharpness of its boundaries. In regions where the oysters are never disturbed by man it is not unusual to find a hard bottom, which extends along the edge of the shore for miles, and is divided up into a number of oyster rocks, where the oysters are so thick that most of them are crowded out and die long before they are full-grown, and between these beds are areas where not a single oyster can be found. The intervening area is perfectly adapted for the oyster, and when a few bushels of shells are scattered upon it they are soon covered with young, and in a year or two a new oys- ter rock is established upon them, but when they are THE OYSTER. SI left to themselves the rocks remain sharply defined. What is the reason for this sharp limitation of a natural bed? Those who know the oyster only in its adult condition may believe that it is due to the ab- sence of power of locomotion, and may hold that the young oysters grew up among the old ones, just as young oak trees grow up where the acorns fall from the branches. This cannot be the true explanation, for the young oysters are swimming animals, and they are discharged into the water in countless numbers, to be swept away to great distances by the currents. As they are too small to be seen at this time without a microscope, it is impossible to trace their wanderings directly, but it is possible to show indirectly that they are carried to great distances, and that the water for miles around the natural bed is full of them. They serve as food for other marine animals, and when the contents of the stomachs of these animals are carefully examined with a microscope, the shells of the little oysters are often foundin abundance. While examin- ing the contents of the stomach of lingula in this way I have found hundreds of the shells of the young oys- ters in the swimming stage of growth, although the specimens of lingula were captured several miles from the nearest oyster-bed. As lingula is a fixed animal, the oysters must have been brought to the spot where the specimens were found, and as lingula has no means of capturing its food, and subsists upon what is swept within its reach by the water, the presence of so many inside its stomach shows that the water must have con- tained great numbers of them. It is clear, then, that the sharp limitation of the area 82 THE OYSTER. of a natural oyster-bed is not due to the absence in the young of the power to reach distant points. There is another proof of this, which is familiar to all oyster- men—the possibility of establishing new beds without transplanting any oysters. I once observed an illustration of this. On part of a large mud-flat which was bare at low tide there were no oysters, although there was a natural bed upon the same flats, about half a mile away. A wharf was built from high-tide mark across the flat out to the edge of the channel, and the shells ofall the oysters which were consumed in the house were thrown on to the mud alongside the wharf. In the third summer the flat in the vicinity of the wharf had become converted into an oyster-bed, with a few medium-sized oysters and very great numbers of young, and the bottom, which had been rather soft, had become quite hard; in fact, the spot presented all the characteristics of a natural bed. Changes of this sort are a matter of familiar experience, and itis plain that something else besides the absence in the oyster of locomotor power determines the size and position of a bed. Now what is this something else ? If the planting of dead shells will build up a new bed, may we not conclude that a natural bed tends to retain its position and size because the shells are there? _ This conclusion may not seem to be very important, but I hope to show that it is really of fundamental importance, and is essential to a correct conception of the oyster problem. Why should the presence of shells, which are dead THE OYSTER. 83 and have no power to multiply, have anything to do with the perpetuation of a bed ? We have already called attention to the fact that oysters are found on the hard bottom on each side of the channel, while they are not found in the soft mud of the channel itself, and it may at first seem as if there were some direct connection between a hard bottom and the presence of oysters, but the fact that no oysters are found upon the hard, firm sand of the ocean beach shows that this is not the case. As a matter of fact, they thrive best upon a soft bottom. They feed upon the floating organic matter which is brought to them by the water, and this food is most abundant where the water flows in a strong current over soft organic mud. When the bottom is hard there is little food, and this little is not favorably placed for diffusion by the water, while the water which flows over soft mud is rich in food. The young oysters which settle upon or near a soft bottom are therefore most favorably placed for pro- curing food, but the young oyster is very small—so small that a layer of mud as deep as the thickness of a sheet of paper would smother and destroy it. Hence the young oysters have the habit of fastening themselves to solid bodies, such as shells, rocks or piles, or floating bushes, and they are thus enabled to profit by the soft bottoms without danger. Owing to the peculiar shape of an oyster shell, some portions usually project above the mud long after most of it is buried, and its rough surface furnishes an excellent basis for attachment. It forms one of the very best supports for the young, and a little swimming 84 THE OYSTER. oyster is especially fortunate if it finds a clean shell to adhere to when it is ready to settle down for life. Then too, the decaying and crumbling shells are gradually dissolved in the sea water, and thus furnish the lime which the growing oyster needs to build up its own shell. As long as the shell is soft and thin, the danger from enemies is very great, and this danger is greatly diminished as soon as the shell becomes thick enough to resist attack. It is, therefore, very necessary that the shell should be built up as rapidly as possible, and an abundant supply of food in general will be of no advantage unless the supply of lime is great enough for the growth of the shell to keep pace with the growth ~ of the body. All sea water contains lime in solution, but the percentage is, of course, greatest near the sources of supply. It is well known that on coral reefs, which are entirely made of lime, all kinds of shelled molluscs flourish in unusual abundance, and have very strong and massive shells; and our common land and fresh-water snails are much larger and more abundant in a limestone region than in one where the supply of lime is scanty. In such regions itis not unusual to find the snails gathered around old decay- ing bones, to which they have been drawn in order to obtain a supply of lime for their shells. From all these causes combined it results that a young oyster which settles upon a natural oyster-bed has a much better chance of survival than one which settles anywhere else, and a natural bed thus tends to perpetuate itself and to persist as a definite, well- defined area; but there is still another reason. As the flood-tide rushes up the channels it stirs up the fine mud which has been deposited in the deep water. The FRENOVSTER. 85 mud is swept up on to the shallows along the shore, and if these are level, much of the sediment settles there. If, however, the flat is. covered by groups of oysters, the ebbing tide does not flow off in an even sheet, but is broken up into thousands of small chan- nels, through which the sediment flows down, to be swept out to sea. The oyster-bed thus tends to eee itself clean, and for these various reasons it follows that the more firmly established an oyster-bed is, the better is its chance of perpetuation, since the young spat finds more favorable conditions where there are oysters, or at least shells, already, than it finds anywhere else. Now, what is the practical importance of this de- scription of a natural bed ? It is this: Since a natural bed tends to remain per- manent, because of the presence of oyster shells, the shelling of bottoms where there are no oysters fur- nishes us with a means for establishing new beds or for increasing the area of the old ones. The oyster dredgers state, with perfect truth, that by breaking up the crowded clusters of oysters and by scattering the shells, the use of the dredge tends to enlarge the oyster-beds. The sketch which we have just given shows the truth of this claim, but this is a very rough and crude way of accomplishing this end, and I shall now give a description of the means which have been employed in different places to accom- plish the same result more efficiently and method1- cally. Within recent years, much attention has been given to the possibility of increasing the supply of oysters by artificial means. 86 THE OYSTER. PEACE V1. An old shoe, one-fourth natural size, upon which there are forty oysters, large enough to be marketable, besides a great number of smaller ones. ‘AIDWIYEG DYSHeIOyN'] O7 x Uaoy ely ch UALSAO AHL THE OVSTER. 87 The oyster 1s well known to be enormously pro- lific, a single one giving birth in one season to many million young, and it is obvious that the annual sup- ply would be enormously increased if all the young which are born could be reared to maturity. Unfortunately, this is not the case, and under a state of nature millions of oysters are born for each one which grows to maturity. Mobius has shown that in Europe each oyster which is born has only one chance in one million one hundred and forty-five thousand of reaching maturity ; I have shown that the chances of each American oyster are very much less. One of the most important discoveries of the last fifty years is, that it is quite possible to save many of these oysters by artificial means; and experiments which have been carried on in France, as well as in many parts of our own country, prove that this can be done, successfully and economically, on a very large scale. Soon after it is born the young oyster fastens itself to some solid body. It is at first so small that it is smothered and killed at once if it falls upon a muddy or slimy bottom, and its only chance for life is in the discovery of some perfectly clean, hard body upon which to fasten. Many young oysters are killed by accidents or enemies after they have fastened themselves, but by far the greater number perish through failure to find proper places for attachment ; and the whole secret of oyster culture is to furnish proper bodies for the attachment of the young. Many methods of doing this have been devised and employed, and the possibility of in this way increas- 88 THE OYSTER, ing the area and value of the natural beds, and of building up new beds or restoring old ones, has been proven. As this is by far the most important aspect of the oyster problem, I shall devote considerable space to the history of these experiments, and to a description of the means and apparatus which have been employed for the purpose. | Although the development of this industry on a large scale is quite modern, seed oysters for planting have been raised artificially upon a small scale in Italy for more than a thousand years, by a very sim- ple method. Pliny tells us that the artificial breeding of oysters was first undertaken by a Roman knight, Sergius Orata, in the waters of Lake Avernus, and that the enterprise was so successful that its director soon be- came very rich. At the present day the methods which were intro- duced, and probably invented by Orata, are still em- ployed by the oyster cultivators of Lake Fusaro, a small salt-water lake. Upon the deep, black mud of the lake they have constructed here and there heaps of rough stones, high enough to keep them above the mud and slime; upon these rocks, oysters which were taken from the sea have been placed to supply the spat, and these breeding oysters grow and multiply and do not need to be renewed, unless they are killed by some accident such as a volcanic eruption. Each pile of rocks is surrounded by a circle of stakes, firmly planted in the mud, while their upper ends are united above water by a cord, THE OVSTER, 89 from which, between each two stakes, a small bundle of twigs is suspended so that it hangs in the water near the bottom. At the spawning season the oysters upon the central pile of rocks discharge countless myriads of embryos into the water, and many of them, finding close at hand suitable material for their attachment, fasten themselves in great num- bers to the twigs, and grow rapidly until, at the proper season, the cultivators take up the stakes and bundles, and after removing those oysters which are of a suit- able size for the market, they replace the stakes and fagots, and leave the small oysters to continue their growth until the next season. In quite modern times the study of these old methods of oyster culture has resulted in the develop- ment of the improved methods which are now em- ployed in France. In 1853, M. De Bon, then Commissioner of Marine, was directed by the minister to attempt to restock certain exhausted beds by planting new oysters upon them, and during this work, which was perfectly suc- cessful, he discovered that, contrary to the general opinion, the oyster can reproduce itself after it has been transplanted to bottoms on which it never before existed, and he at once commenced a series of experi- ments to discover some way to collect the spat emitted by these oysters, and he soon devised a successful apparatus, which consisted of a rough board floor, (Figure 1), raised about eight inches above the bottom, near low-tide mark, covered by loose bunches of twigs. With this apparatus, constructed on a very small scale, he obtained results which showed that spat may 4* : i \\ iN I . 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SS Uf S ha HUH | Vii || | ~ Wl MH Nb) \ ql \ ; H| SS ‘ S Wi CURA 1) TH SX | RN Hi | i | i] iil if y i | || SS S \ Ni rel tl | | I ~ S it WRI ANI { | Hl i \ } HI ' YN ps | \ \ ’ | | H i UR AW Aah my |! || \ | i) 3 plies) 1 | HM LY" \ | | | Se fy i/|\A ‘a ||) i AN A Te: } mt i | =\ ci it | ine . y I) | | | : ! | ae Hi NAWAT||| | i fei ETA \ Hy \ Ni AW » \ H We ! | | | | | Hay | | i u | 1 ; Hil TR PN | is » f i | i WW)! ) Y | ; ) TWH ] i \ | ~ | / ; ais ‘a | | = Hy WH \) \. | } | mi Hi ip A ||! | \ m7 | WR | | H iH, ij | it} | Wi | h i} } Wi \ M(t i | Ws tH a | Min Wi} \ | i ( Wit 4 a eee ou EGuate THE OYSTER. 9! be collected in this manner without difficulty; but no attempt to put the new method into practical use was made until the subject was taken up by the well known French fish-cultivator Coste, who, in a report to the Minister of Agriculture and Commerce in 1855, giving an account of his examination of the methods used at Lake Fusaro, expresses’ his desire to*try similar methods in France. Two years later the Emperor supplied the means for experiments on a large scale, and commissioned Coste to conduct them. Three million oysters, purchased for the purpose, were conveyed by two small steamers and a flotilla of small boats, to a place which had been selected, where oyster shells had previously been spread to serve as collectors, and after the oysters were planted, long rows of bundles of fagots were let down and anchored about a foot above them, as shown in Figure 2. At the close of the season the shells and branches, one of which is shown in Figure 3, were found to be covered with young oysters, and more than twenty thousand oysters were counted on one bundle. Before he began his work, he stated in his report for 1858, that out of twenty-three natural beds which formerly constituted a great source of wealth, eighteen had been completely destroyed, while the remaining beds had been so impoverished that they no longer yielded enough oysters for planting. In another locality, where thirteen valuable beds formerly fur- nished employment for two hundred vessels and four- teen hundred men for six months in each year, and yielded an annual harvest valued at $60,000 to $80,000, —— ———————— SF ——=, _—-= ‘ ————— = SSS SSS —— Gazz EE SSy 2 =e = = BIEN == a —S a = === 7 WY} F re BiG, 3. 94 THE OYSTER. only three beds remained, and these were so depleted that, twenty boats could in a few days carry away all the oysters. In 1863, during six tides, upon only one-half of an area of 1000 acres which had been restocked, he obtained 16,000,000 marketable oysters. Land was then ceded by the government to indi- viduals, to be cultivated in the same way, and one area of 492 acres was in a few years stocked with oysters valued at $8,000,000. The government farms were never very successful, but the industry has prospered and grown steadily under private management, and the oyster-culturists, taught by their own experience and by the results attained through the government experimental parks, became more self-reliant; they improved their imple- ments and their methods of work. It may be affirmed that in the two principal centers in which it is now carried on, the basins of Arcachon and Morbihan, this industry then emerged from its period of uncertainty. The great profits realized there during the past few years have brought oyster culture again into favor, and turned toward it a current of labor and capital much greater than that which flowed in the same direction after the publication of M. Coste’s report. Requests for concessions of parks are received by the Minister of Marine from all quarters of the coast. Attempts are being made to reconstruct old and abandoned establishments, while new ones are being started in the majority of localities where others formerly existed. Those seeking grants desire particularly the unclaimed localities in the basin of Arcachon and the rivers of THE OYSTER. 95 the marine sub-district of Lorient, certain that they will receive in the future what is promised by the present. At the close of 1871 the parks controlled by private parties in this basin numbered 724, and occupied a total area of 1450 acres; at the close of 1872 they were 1133 in number and occupied an area of 2625 acres; at the close of 1874 they numbered 1706, and covered an extent of 4310 acres, not counting the portion formerly included in the reserved zone but now given over for parking. The denomination “ Reserved Zone” was applied to a considerable section of the basin, in which parks were prohibited in order to retain a com- mon fishing ground which could be frequented by all. In view of the great increase in oyster culture at Arcachon, both to satisfy the claims of the old parkers, who complained that they were cramped for room, and to meet the new demands which were constantly in- creasing in number, the Minister of Marine decided, on January 28, 1874, to open up the greater portion of the reserve zone to private industry. The remainder of this zone, positively withheld from private demands, comprises exclusively the natural beds of the basin with their immediate surroundings, which it is import- ant to protect against all intrusion, as the prosperity of the parks depended upon their preservation. In pur- suance of the ministerial decision of January 28, the first work of dividing off the sections for distribution was carried on during the year 1874; a decree has just been issued for the formation of 728 new parks, which, added to the 1706 now existing, will make a total of 2434 concessions and an extent of 6625 acres to be occupied by oyster culture. A second work 96 THE OYSTER. of the same character has just terminated; a third will soon follow. In Morbihan the development of oyster culture is no less striking. The section of Vannes contains nearly 200 oyster parks, while that of Auray will soon have 300, and requests are still coming in. Thus, persons in all stations in life are engaging in oyster culture, either by investing their capital in it or by laboring for it. Many of them are without experience in the matter, and it therefore seems proper and oppor- tune to add to this brief historical sketch a few practi- cal remarks concerning the processes now in use for the cultivation of the oyster. A knowledge of the processes which have the authority of success will, perchance, guide inexperienced oyster-culturists in the right direction and prevent mistakes; it may also in- cite others who are still indifferent or timid. One of the most interesting and instructive lessons to be learned from this history of oyster farming in France is that private industry in this field, as in all others, can accomplish more than government influ- ence, and as the cultivation of private farms spreads, the advisability of devoting all suitable grounds to this use becomes more and more apparent. Experience the world over teaches that the most efficient agent for the preservation and development of natural wealth is private enterprise. The opposition in Maryland at present to the grant- ing of any natural oyster-bed to private holders is very strong indeed, but little insight into the future is needed to perceive that the disappearance of this feel- ing would result in an enormous increase in the pros- perity of our people. THE OYSTER. 97 OYSTER FARMING IN AMERICA. The American system of oyster farming, which pre- sents some features of resemblance to the French sys- tem, and also many differences, has grown up as the result of private enterprise, without any help or any direct encouragement from government. The French people are generally held to be the orig- inators of modern oyster farming, but, as an Ameri- can, I take pleasure in pointing out that our own in- dustry, which is now so extensively developed in Con- necticut, has not been borrowed from France, but has grown up independently. Several years before Coste and De Bon commenced their experiments, the oystermen of East River, hav- ing observed that young oysters fastened in great numbers upon shells which were placed upon the beds at the spawning season, started the practice of shelling the beds, in order to increase the supply, and in 1855, or three years before Coste represented to the French Emperor the importance of similar experi- ments, the State of New York enacted a law to secure to private farmers the fruits of their labor, and a num- ber of persons engaged in the new industry on an ex- tensive scale. Among these pioneers in this field were Mr. Fordham, Capt. Henry Bell, Mr. Oliver Cook, Mr. Weed, Mr. Hawley and others. The industry has grown steadily from that time, and East River is now said by Ingersoll to be the scene of the most painstaking and scientific oyster cul- ture in the United States, and the interest and import- ance of the subject is so great that I quote the whole 5 98 THE OYSTER. of Ingersoll’s account of its origin, development, and present methods: “T have no doubt: that, whatever was the date of its origin, the credit of first truly propagating oysters from seed caught upon artificial beds or prepared recepta- cles, belongs to the men of City Island. It had been a matter of common observation that any object tossed into the water in summer became covered at once with infant oysters. The sedges along the edge of the marshes, and the buoys, stakes and wharf-piles were similarly clothed. If the circumstances were favorable this deposit survived the winter, and the next spring the youngsters were large enough to be taken and transplanted. It was only a short step in logic, there- fore, to conclude that if objects were thrown thickly into the water on purpose to catch the floating spawn, a large quantity of young oysters would be secured, and could be saved for transplanting at very slight expense. The next question was—What would best serve the purpose? Evidently, nothing could be bet- ter than the shells which, year by year, accumulated on the shore from the season’s opening trade. They were the customary resting-places of the spawn, and at the same time were cheapest. The City Island oys- terman, therefore, began to save his shells from the lime-kiln and the road-master, and to spread them on the bottom of the bay, hoping to save some of the oys- ter spawn with which his imagination densely crowded the sea-water. This happened, I am told, more than fifty years ago, and the first man to put the theory into - practice, it is remembered, was the father of the Ford- ham Brothers, who still pursue the business at City THE OYSTER. 99 Island. In 1855 Captain Henry Bell, of Bell’s Island, planted shells among the islands off the mouth of Nor- walk River, and a short time after, under the protec- tion of the new law of 1855, recognizing private prop- erty in such beds, Mr. Oliver Cook, of Five Mile River ; Mr. Weed, of South Norwalk; Mr. Hawley, of Bridgeport, and others, went into it on an extensive scale. Some of these gentlemen appear never to have heard of any previous operations of this sort. Dis- covering it for themselves, as it was easy and natural to do, they supposed they were the originators; but if any such credit attaches anywhere, I believe it belongs to the City Island men. It was soon discovered that uniform success was not to be hoped for, and the steady, magnificent crops reaped by the earliest planters were rarely emulated. Many planters, there- fore, distrusted the whole scheme, and returned to their simple transplanting of natural-bed seed; but ethers, with more consistency, set at work to improve their chances by making more and more favorable the opportunities for an oyster’s egg successfully to attach itself, during its brief natatory life, to the stool pre- pared for it, and afterward to live to an age when it was strong enough to hold its own against the weather. This involved a closer study of the general natural history of the oyster. “The first thing found out was that the floating spawn would not attach itself to or ‘set’ upon any- thing which had not a clean surface ; smoothness did not hinder—glass bottles were frequently coated out- side and in with young shells—but the surface of the object must’not be slimy. It was discovered, too, 100 LHe OV STIR that the half-sedimentary, half-vegetable deposit of the water, coating any submerged object with a slippery film, was formed with marvelous speed. Thus shells laid down a very few days before the spawning-time of the oysters sometimes become so slimy as to catch little or no spawn, no matter how much of it is floating in the water above them. This taught the oystermen that they must not spread their shells until the midst of the spawning season; that one step was gained when they ceased spreading in May and waited until July. Now, from the 5th to 15th of that month is considered the proper time, and no shell-planting is attempted before or after.” These dates are for the waters of New York. In Maryland, the month of June is most favorable for the attachment of spat. The date varies, however, accord- ing to the locality, the depth of water, the character of the season and other influences. Good judgment as to the proper time for shelling the bottom car be acquired only by experience, but a series of exact experiments in different parts of the bay would be of great value, as they would afford data for the guidance of private cultivators. “The knowledge of the speed with which the shells become slimy was turned to account in another way. It was evident that the swifter the current the less would there be a chance of rapid fouling. Planters, therefore, chose their ground in the swiftest tideways they could find.” ‘The mere manner of spreading the shells was also found to be important. If they are rudely dumped over, half their good is wasted, for they lie in heaps. THE OYSTER. IOI The proper method is to take them from the large scow or sloop which has brought them ashore, in small boat-loads. Having anchored the skiff, the shells are then flirted broadcast in all directions, by the shovelful. The next boat-load is anchored a little farther on, and the process repeated. Thus a thin and evenly-distributed layer is spread over the whole ground. Just how many bushels a man will place on an acre depends upon both his means and his judg- ment. If he is shelling entirely new ground, he will spread more than he would upon an area already im- proved; but I suppose 250 bushels to the acre might be recommended as an average quantity.” This is very much too small a quantity, and in our waters, five or six times as many shells, from 1000 to 1200 bushels, should be used. “ Having spread his shells in midsummer, the planter, by testing them early in the fall, can tell whether he has succeeded in catching upon them any or much of the desired spawn. The young oysters will appear as minute flakes, easily detected by the experienced eye, attached to all parts of the old shell. If he has got no set whatever, he considers his investment a total loss, since by the next season the bed of shells will have become so dirty that the spawn will not take hold if it comes that way. Supposing, on the contrary, that young oysters are found attached in millions to his cultch, as often happens, crowding upon each old shell until it is almost hidden, what is his next step ? “The ordinary way in the East River and else- where, is simply to let the bed remain quiet, until, in the course of three or four years, such oysters as have FO2 THE OY STIR. survived are large enough to sell, when the bed is worked—at first, probably, with tongs and rakes, get- ting up the thickest of the crop. This done, dredges are put on, and everything that remains—oysters, shells, and trash—is removed and the ground left clean, ready for a second shelling, or to be planted with seed. “In the process of growth of the young oysters lodged upon the fields of cultch, when left undis- turbed, there is, and must of necessity be, a great waste under the most favorable circumstances. Leav- ing out all other adversities, this will arise from over- crowding. More ‘blisters’ attach themselves upon a single shell than can come to maturity. One or a few will obtain an accession of growth over the rest, and crowd the others down, or overlap them fatally. Even ifa large number of young oysters attached to a sin- gle stool do grow up together equally, their close elbowing of one another will probably result in a closed, crabbed bunch of long, slim, unshapely sam- ples, of no value save to be shucked. To avoid these misfortunes, and, having got a large quantity of young growth, to save as much as possible of it, the more advanced and energetic of the planters, like the Hoyts, of Norwalk, pursue the following plan: When the bed is two years old, by which time al]l the young oys- ters are of sufficient age and hardiness to bear the removal, coarse-netted dredges are put on, and all the bunches of oysters are taken up, knocked to pieces, and either sold as ‘seed,’ or redistributed over a new portion of bottom, thus widening the planted area, and at the same time leaving more room for those single THE OYSTER. 103 oysters to grow which have slipped through the net and so escaped the dredge. The next year after, all the plantation, new and old, is gone over and suitable stock culled out for trade, three-year old East River oysters being in demand for the European market. This further thins out the beds, and the following (fourth) year the main crop of fine, well-shaped, well- fed oysters will be taken, and during the succeeding summer, or perhaps after a year, the ground will be thoroughly well cleaned up and prepared for a new shelling. 5 “All these remarks apply to a reasonably hard bottom which requires no previous preparation. In portions of Long Island Sound, especially off New Haven, it has. been needful to makea crust or artificial surface upon the mud before laying down the shells. This is done with sand, and has been alluded to in the chapter on New Haven harbor. “Just what makes the best lodgment for oyster- spawn intended to be used as seed, has been greatly discussed. Oyster shells are very good, certainly, and as they are cheap and almost always at hand in even troublesome quantities, they form the most available cultch, and are most generally used. Small gravel, however, has been tried on parts of the Connecticut coast with great success, the advantage being that not often more than one or two oysters would be attached, and therefore the evil of bunchiness would be avoided. Where scallop shells, as in Narragansett Bay, or, as in northern New Jersey mussels and jingles, Azomza, can be procured in sufficient quantities, they are undoubt- edly better than anything else, because they not only 104 THE OYSTER. break easily in culling, but are so fragile that the strain of the growth of two or more oysters attached to a single scallop or mussel-valve will often crack it in pieces, and so permit the several members of the bunch to separate and grow into good shape singly. I am not aware that any of the elaborate arrangements made in Fratice and England for catching and preserving the spat have ever been imitated here, to any practical extent. The time will come, no doubt, when we shall be glad to profit by this foreign example and ex- perience. “Although the effort to propagate oysters by catch- ing drifting spawn upon prepared beds has been tried nearly everywhere from Sandy Hook to Providence, it has only, in the minority of cases, perhaps I might say a small minority of cases, proved a profitable undertaking to those engaging in it; and many planters have abandoned the process, or at least calculated but little upon any prepared beds, in estimating the prob- able income of the prospective season. This arises from one of two causes: Ist, the failure of spawn to attach itself tothe cultch ; or, 2d, in case a ‘set’ occurs, a subsequent death or destruction. “The supposition among oystermen generally has been that the water everywhere upon the coast was filled, more or less, with drifting oyster-spat during the spawning season, whether there was any bed of oysters in the immediate neighborhood or not. In other words, that there-was hardly any limit to the time and distance the spat would drift with the tides, winds and currents. I think that lately this view has been modified by most fishermen, and I am certain it greatly THE OYSTER. 105 needs modification; but, as a consequence of the opinion, it was believed that one place was as goodas another, solong as there wasa good current or tideway there, to spread shells for spawn, whether there were any living oysters in proximity or not. But that this view was fallacious, and that many acres of shells have never exhibited a single oyster, simply because there was no spat or sources of spat in their vicinity, there is no reason to doubt. “Having learned this, planters began to see that they must place with or near their beds of shells living mother-oysters, called ‘spawners,’ which should supply the desired spat. This is done in two ways—either by laying a narrow bed of old oysters across the tideway in the center of the shelled tract, so that the spawn, as -it is emitted, may be carried up and down over the breadth of shells waiting to accommodate it, or by sprinkling spawners all about the ground, at the rate of about ten bushels to the acre. Under these arrange- ments, the circumstances must be rare and exceptional when a full set. will not be secured upon all shells within, say twenty rods of the spawners. Of course fortunate positions may be found where spawn is pro- duced from wild oysters in abundance, or from con- tiguous planted beds, where the distribution of special spawners in unnecessary; yet even then it may be said to be a wise measure. “The successful capture of a plenteous ‘set,’ how- ever, is not all of the game. This must grow to sala- ble maturity before any profits can be gathered, and it so often happens that the most promising beds in Sep- tember are utterly wrecked by January, making a total Foo: THE OYSTER. loss of all the money and labor expended, that more than one planter has decided that it does not pay to attempt to raise oysters upon shells, so long as he is able to buy and stock his grounds with half-grown seed—a decision which may be based upon sound reasoning in respect to certain localities, but which certainly will not apply to all of our northern coast. “The great drawback to East River oyster-plant- ing, of every kind, is the abundance of enemies with which the beds are infested. These consist of drum- fish, skates, and, to a small degree, of various other fishes; of certain sponges and invertebrates that do slight damage, and of various boring molluscs, the crushing winkle, and the insidious star-fish or sea-star. It is the last-named plague that the planter dreads the most, and the directly traceable harm it does amounts to many tens of thousands of dollars annually in this district alone. Indeed,it seems to have here its head- quarters on the American oyster coast, where it has utterly ruined many a man’s whole year’s work.” Ingersoll states that 20 bushels of shells laid down anywhere in the upper part of Barnegat Bay, New Jersey, will produce 100 bushels of seed oysters, but that there is no protection for this industry, as popu- lar construction makes such beds “natural ground.” At Brookham Bay, off the south coast of Long Island, in the region of the well-known “blue point” oysters, it has been the custom for several years to lay down shells, scrap-tin, etc., for the attachment of the young, and when this is done near any oyster-bed, or whenever spawning oysters are planted among the shells, there is rarely a failure to get plenty of young. THE OYSTER. 107 The Delaware planters often find that after a bottom has been used for many years for planting, the young oysters grow upon the shells which gradually accumu- late, and a very valuable artificial oyster-bed is thus established. The law-abiding citizens respect the pri- vate ownership of these beds, and they are a source of wealth to their possessor. I quote from the “ Report of the Shell-Fish Com- missioners,’ of Connecticut, for 1883, the following statement of the present condition of the industry in that State: “The deep-water cultivators proceed in three differ- ent ways to make beds. (1). The bottom being prop- erly cleared off, the seed oysters, mixed with the gravel, jingles and other shells just as they are gathered from the natural beds, are distributed thereon more or less uniformly, and there left to grow. (2). Or the bottom is spread over with clean oyster shells just be- fore the spawning season begins, and brood oysters, twenty-five bushels to the acre, are distributed over the bed. (3). Or,if the bed is in the neighborhood of natural beds, the shelled bed is left without further ‘preparation to catch the spawn as it is drifted above it. Sometimes the shells fail to ‘catch a set,’ and this makes it necessary to rake over the shells the follow- ing year, or to cover them over with more fresh shells for the next spawning. There is always an abund- ance of spawn in the waters of the Sound, and when a set is secured an enormous crop is the result. On a private deep-water bed, during the past summer, the dredge was drawn at random in the presence of the commissioners, and from an ordinary-size shovelful 108 THE OVSTER. there were counted 206 young oysters in excellent condition, of the average size of a quarter of a dollar. As many as a hundred young oysters have been counted growing on a medium-sized oyster shell. ‘“The beds are carefully tended, and no pains are spared to kill all the enemies of the oysters found among them. By continual vigilance the private beds are kept comparatively free from them. The larger proprietors of deep-water beds use steamers for this work, as also in doing their work of planting, raking over and dredging, and they use larger dredges than the sail vessels can, as they are also worked by steam ata great saving of labor and expense. When the oysters have grown on these beds to a merchantable size they are sometimes sold directly from the beds, but more frequently they are transplanted into brackish or fresh waters, where they are permitted to remain for a short period to freshen and fatten for market. “The foregoing table affords the ground for the assumption that by the time of the opening of spring work, in 1883, 45,000 acres of ground will have been deeded to applicants by the Commissioners. These, with the 45,000 acres deeded by the towns prior to May, 1881, will show an aggregate of 90,000 acres held by cultivators under state jurisdiction. | “Of this vast area, a large portion has been cleared up and shelled. One firm has laid down 250,000 bushels of shells. Several large growers have laid down as many as 200,000 bushels each. A still larger number have scattered a hundred thousand, fifty thousand and twenty thousand each. There are about 30 steamers engaged in the business, besides a very LHE-OVSTER. 109 large number of sailing vessels. Shells that but a few years ago were almost worthless, have increased in value, and are sought after far and near. It is esti- mated by competent judges that the number of acres under cultivation is at least double what it was one year ago. With trifling exceptions, good sets have been secured upon the beds, and, if no unusual acci- dents occur, the crop the next two years will be enor- mous. One cultivator alone looks for no less than 1,000,000 bushels of marketable natives from his own grounds. Several other growers, individuals and companies, are looking for large crops, and all are planning to still further extend their farms. “Tt does not admit of a doubt that the business of oyster-growing as carried on in the waters of the Sound, is exceedingly profitable.” The Connecticut oystermen have many obstacles and risks, from which our own waters are free, and many of the farms have been completely ruined by starfish and other enemies, but notwithstanding all these drawbacks, the crop, which was 336,000 bushels in 1880, had increased in 1888 to 1,454,000 bushels. During the period of his employment by the French Government to replenish the oyster grounds, Coste devised a number of plans for furnishing an attach- ment for the oyster spat, and these devices have been greatly improved by other experimenters. Most of them could be employed in our own waters with advantage, and in order to make our people acquainted with them, we will give a brief description of the more important substances which have been thus employed. Some of them are adapted for certain TIO THE: OVS TER FEALTE. Vil FiGuRE 2. An oyster’ shell upon the inside of which about one hundred and fifty young oysters have fastened themselves. This is one from the lot of shells which were sold by Mr. Church, of Crisfield, from the pile of shells at his packing-house, to an oyster farmer in Long Island Sound. Mr. Church visited the farm five weeks after the shells were shipped, and took up a number of the shells, and he states that the. one which is here figured is a fair sample. Figure 1. A pipe, upon the bowl of which six oysters have grown; from the Chesapeake Bay. Vit 4 LATE | ie THE OYSTER A Huen & Co. Lithocaustic,Baltimaore. THE OF STE. A localities, while others can be used to best advantage under other conditions. Our people have long been noted for their ingenuity, and there is no doubt that, as the great importance of oyster-farming comes to be appreciated among us, we shall have many great im- provements in the methods of procuring seed oysters, better adapted for our own needs than any which are here described, but our account will serve to show our people the general direction in which their inven- tive skill must be directed. Oyster Shells —At present no spat-collector seems to be better adapted for use in our waters upon hard bottoms than oyster shells, and they are now the cheapest collectors that can be used. In order to serve this purpose the shells must be perfectly clean, and as the old dead shells, which have lain for a long time upon the oyster-beds, are torn to pieces by the boring sponge and covered with mud and slime, hydrioids, sea-weed and sponges, they are much less effective than those which are placed in the water just before the spawning season. In regions where there is no danger from frost, or. where the young growth is to be planted in deeper water before winter, the shells may be deposited at or even above low-water mark, and in the sounds of | North Carolina oysters thrive even at high-tide mark. The shells should be deposited in the early summer— in June, July and August—in localities where there is enough current to sweep the swimming young past them. cog cer eis oa alewaictouiciachs 5.6 Rees Aeee wage BS OZIMATIS EUR HS cacicc is cies oe sinless oicls njetnecnieisioee 2.33 ete eis Ac neta Rte yaa Gel £Polial podooe Dap OnCOed ack DUO OBE FOrc 3. are some asic In 1876 puReer found as the average for twenty beds 3.652 bushels of oysters for each bushel of shells. . In 1879 Winslow found as the average from seventeen beds 1.$€2 bushels of oysters forreach bushel of shells. In 1882 we found as the average for fourteen beds 1.81 bushels of oysters for each bushel of shells. In 1883 we found as the average for thirty-one beds 1.4-10 bushels of oysters for each bushel of shells. THE OYSTER. 157 This table shows that while it is necessary, in 1883, to handle 161 bushels of oysters and shells to obtain 100 bushels of oysters, it was necessary to handle only 151 bushels in 1879 and only 127 bushels in 1876. This evidence, in connection with that which has been given in Table 1, seems to prove that the whole oyster area of our State is being rapidly exhausted. THE RATIO BETWEEN LARGE AND SMALL OYSTERS. Any bed is on the road to destruction if the number of old oysters which are removed from it each year is as great as the number of young ones which are grow- ing up to take their places. Oysters, like other ani- mals, are exposed to many accidents, and the number which can be taken from a bed annually is equal to the number which are growing up to take their places, less the number which will be destroyed by the acci- dents of nature. An accurate count of the oysters of various ages upon a bed, therefore, gives us a means of deciding whether it is or is not in danger of exhaustion. We have examined in this way the oysters upon the beds which we have visited, and have divided them into four classes. The first class includes large oysters, or all oysters of which a bushel does not contain more than 250; the second class includes medium oysters, or those between 250 and 400 to the bushel; the third class includes the small oysters, those which are large enough to be seen and counted without difficulty, and more than 400 to the bushel ; and the fourth class, or “ young,” those which are less than one-half inch long. 158 THE OYSTER. The accompanying table shows the number of oys- ters of each class which we obtained upon the beds which we visited, and the ratio between them. Thus we found upon the Bodkin bar in November, 1882, no large oysters, 225 medium oysters, 355 small ones, and no young, and there were at that time 100 small ones for each 67 of medium size. In June, 1883, we found no large ones, and the small ones which we had found in November had grown to a medium size, and there were no small ones growing up to take the places of these when removed by the season’s dredging. This result seems at first sight to indicate that the fishing this season (1884) will ex- haust the Bodkin bed and put an end to work there, but in truth the case is not quite so discouraging, for our second examination was made before the end of the spawning season, and an examination in the fall — might have given a different result. In order to be trustworthy, an examination of this kind should be made every year, in the same month, and if the oysters of various sizes upon each bed could be counted twice every year, in May or June, and in September or October, the results would be very valuable and would soon furnish a very exact means for ascertaining the condition of the beds. This evi- dence would be the more valuable, as it would soon enable us to determine, a year or more in advance, how many marketable oysters a bed could yield with- out injury. In the absence of any records of the numbers of oysters of various sizes in previous years, our table is of no particular value, but we give it.in full, in order to facilitate the work of comparison in the future. TABLE No. 3.—To SHOW THE NUMBER AND RATIOS OF OYSTERS OF VARIOUS SIZES. e 2S: loe + ‘ no MoD oh-t r= o nee ny (Sfp = op - | So 2) g23 Bets.| £8 | 28 | Be = =| eS = 5 = 68,| see |5Suea] w2 Savas Sa4| Saa lfoteo| Sx x | os Hae | oon (¢aame| 2S | 22 i ae asa sas Bsa88 by Es Es Bodkin, November, 1882.............. 0 225 355 0 siete 67 BOGHIN, DUNE) ISS... csiwowks bucceeeus 0 314 0 0 ee Mocs DANG y Oly UNOS 1888). sc cre sc 0s 0's 133 176 0 0 TTD laine Sandy Point, November, 1882........ 0 155 700) many. weet een Hackett’s Point, November, 1882.... 600 2,025 0 0 seo ener Hackett’s Point, June, 1888 .......... 108 425 0 0 204 Swan Point, November, 1882......... 300 2,250 0| few. 188 Swan Point, June, 1883............006 34 49 0 0 .69 Chester River, June, 18€3...........0- 110 79 0 0} 2.14 Cornfield Creek, June, 18€3.......... 0 4€3 0| few. ieee Thomas’ Point, June, 1883............ 102 0 0 GI Se sraraally Seca ally 7s) EOMts UUME, 1O8as me sce stews 197 71 1038 0 120] 2.63 Eastern Bay, June, 1888............... 13 146 53 0 C88} 2.75 Eastern Bay, November, 1882........ 50 525 0} few. 1009)" acces Tilghman’s Point, June, 1888......... 0 101 85 Ol) orcas 1.2 PCWIWHaI DUNE, TES. i scots ce ceincles - 91 140 0 0 eae oc Chim Bomb, JUNC, USB5. d5 0% ccc cca ces 0 V7 0 Oe aa. Cook's Point, Jume, 1863... ..issc0e0s'e 0 123 0 Ol yoke Benoni’s Point, June, 1883............ 0 0 430} few. eis Chlora’s Point, June, 1883............ 0 0 40 (Ue creioe Odd SEPOINT, SUNG, 1888)...0cc ce cteoe ee i) 8 0 Olean Castlehaven, June, 1883............... 0 6 0 ON eer Horn Point, June; 1883... 2006662. cee es 0 0 1E0| few. eA eatia a Choptaniks JUNE, UQ88s..05.00i secre ares se 0 137 al) Ole. -f- 22 South River, June, 1888............... 0 0 ceo} Many. Bee artis Shackel’s Point, June, 18€3........... 0 190 0 Uh Sede Duvallis Bar, June, 18ts.....0..cs0s.s 0 0 200) few. aoa Brewer’s Point, June, 1883..........0¢ 0 340 0 0 asais Purdy’s Point, June, 1883............. 0 165 0 Ul acae Round Point Reef, June, 18&3 495 0 0 (t) Ace Saunders’ Point, June, 183 .. 0 802 0 0 EAael| once Poplar Island, November, 188) 218 ga) 210) few. 1.24 83 Poplar Island, June, 18€3....... 0 124 0 0) esl | Suedaty Three Sisters, November, 1882 450 208 0! few. 1.94 three Sisters, June, 18&3....-......... _ 2 193 0 US ae he, Sharp’s Island Rock, November, 1882 400 £00 O|many. 4 Sharp’s Island Rock, July, 18§3...... 21 148 0 0 146 Little Choptank, July, 1883........... 0 0 28 0 Abde RasMed Pointit, —) WLy, 1888... ssc os bee. o 0 48 0 0 tak SPO, ) Uy; W888: s.... 00s cces oes 80 0 0 0 es Nir rensiea ds Wl Vs locos es. + 0 oT 0 Ohaiea: Near Holland Point, July, 18&3....... 0 182 0 0 Asoo Holland Point, July, 1863.0 .0. oe ..6566 0 0 193 0 asics PlumMsP ont PUliy, ISEB: sje.ic- soos esos 23 0 0 Uf ess Midday Ware, MUlys ISB. .cc cc. e leew. 0 121 0 Oli Se6e LCS) 21 JU \ dle s ieee Se ae 0 22 0 Di Sect Little Low Point, July, 1883.......... 9 208 0 I mares Patuxent River, July, 1863............ 0 0 158) many. a Hawk’s Nest, July, 1888...........0.6- 0 0 569| many. fe Brooms Island, July, 183s cc20-s sec. 0 _ 0 872 0 Forts Patuxent Middle Ground, July, 1883. 0 339 0 Ofte ee OMIAS: ALS cULYs USO ssc ececlcrecce 0 0 205 OPP es cee Kent Island, November, 1882......... 180 160 0 0 1.12] .... Feentelislands Jitlliys 18eS.cc cri cscs ue + 22 59 10 0 Bil BAe Bloody Loin. J Uy, (SES... cn. ce caaa.e 45 49 0 0 OE] «-=- Potomac No. 1, January, 18€38........ 0 151 0; many. Be wee Cornfield Point, August, 1883 ........ 0 0 513} many tees St. Mary’s River, August, 18€3........ 0 0 225} Many tees St. George’s Island, August, 18&3.... 0 405 many weed Piney Point; August, 1883............ 0 0 696] many.; --..- Goce Great Rock, November, 1882:........ GAT 407 401 0} 1.83) 102 Piney Island Bar, November, 1822... . 0 700 825 0 apc aeeele Fishing Bay, November, 1882......... 0 227 212 Ole ase: 1.07 Fishing Bay, November, 1882......... 0 46 3s 0 ee selly ated Hooper’s Strait, November, 1882 .... 0 0 4,000, many. Tic Spe James’ Point, November, ARBO eS acees 0 vi 111) many nee 63 No Point Bar, November, 1882........ 84 213 130 39| 1.60 Turtle Egg Rock, November, 1883.... 191 164 0, few L1G) Catt BRO UR Loeb ees oak ene. came dee aeiee c 4,717 15,673 AUER ASIS sre alerts 160 THE OVSTER. The precise significance of this table cannot be under- stood until similar examinations have been carried on for a term of years, and at the same time in each year. It will be observed, however, that it shows a total of 20,390 large and medium oysters to only 11,848 small ones. Four thousand of these small oysters were taken at one time in Hooper’s Strait, in a “ pocket” which had escaped the dredgers, and this haul should be omitted in order to show a typical average. If we leave it out we shall have 20,390 large and medium oysters to 7848 small ones, or only a little more than one small one to three marketable ones. It is very probable that if all our examinations had been made in the fall, the number of small oysters would have been found much greater, and they are above the average on the beds which we examined in November. Still the summary of the whole table shows that the beds are losing their fecundity, and that the crop this winter (1883-1884) will be Erle than it will be the year after. The reasons for the small number of young oysters we believe to be, in part, the scarcity of mature oysters to furnish spawn; in part the wanton destruction of great numbers of very young oysters through the vio- lation of culling laws, and in part the absence of enough clean shells on the beds to furnish attachment for the spat. There are unlimited numbers of old, cece and dirty shells on all the beds, but on many of them we found hardly a single shell proper for the attachment of spat. We regard the annual examination of the beds, in THE OYSTER. 161 the way we have employed, as a matter of very great importance. In the absence of such observations it is impossible to state with perfect certainty how many oysters a bed may yield annually without injury. This examination should be made every year, during the same months, and it should be made under the superin- tendence of the same person, in the same way, in order that the results may admit of direct comparison. Pro- vision should be made for the annual examination of all the beds under the direct control of the State. The proper time for this examination is the closed season. An examination after the year’s dredging would show how many full-grown oysters remain and how many the bed might safely yield during the next season. If the examination were made late in the summer it would also show how many young oysters have become attached during the spawning season. While our own work was not exhaustive enough to give the information which is necessary for this pur- pose, it was amply sufficient to show that in 1882 and 1853 the deterioration of our beds had made rapid progress, and that our system of managing the beds was a failure. The next step in our inquiry was to find the defects in our system, and to point out the reason for its fail- ure, and this task was found to be an easy one, for the experience of other countries which have passed through the same history gave a clear and simple ex- planation. THE CAUSE OF THE EXHAUSTION OF THE BEDS. While the reason for the exhaustion of our beds is at 162 THE OYSTER. perfectly clear and simple, the greatest ignorance upon this point exists in the minds of our people. Certain writers have attributed the destruction of the oysters to disease, like the pious oystermen of Wellfleet, on Cape Cod, who, after they had extermin- ated their oysters by over-fishing, laid their loss upon Providence, which had, they said, punished them for their sins by inflicting a fatal disease upon the inno- cent oysters. Some of the explanations of the destruction of the oysters come from persons who have enjoyed such opportunities for observation and study of the subject that broader views might fairly be expected from them. Thus, to explain the disappearance of oysters from the New England coast north of Cape Cod, a well- known conchologist, Dr. Gould, says that he does not believe there were ever any oysters there; while a very eminent naturalist, Prof. Verrill, holds that the climate of New England has undergone a change within the last century or two, and that it is now too cold for oysters, although a few scattered oysters are found there still, and although they are still abundant at some points on the much colder coast of New Brunswick, and although we have the minute accounts which the early settlers have given us of the gradual destruction of their oysters as the population increased. We can hardly be surprised that our people should exhibit total ignorance of the true cause of the de- struction, when we recollect that there is not a single word in any of the laws of Maryland which indicates that our legislators are aware that the supply of oysters can be artificially increased, or that there is need for any such increase. THE OYSTER. 163 The contrast between the views upon the oyster question which are now prevalent among our people, and those which come from a broad-minded considera- tion of the question in all its relations, can be illus- trated by an example. The uncivilized Indians are able to supply all their wants from the natural re- sources of their hunting-grounds, but as population increases, food grows scarcer and hard to procure, and it soon becomes evident that the natural supply is notenough. The first impulse, in such an emergency, is to restrict the demand, by driving away or starving out the superfluous population; and if savage tribes were able to enact and enforce laws, they would no | doubt try to preserve their game by laws restricting the quantity to be killed, or by laws forbidding the use of improved appliances for capturing it. Civilized races have long recognized the fact that the true remedy is not to limit the demand, but rather to increase the supply of food, by rearing domestic sheep and cattle and poultry in the place of wild deer and buffaloes and turkeys, and by cultivating the ground instead of searching for the natural fruits and seeds of the forests and swamps. It is not in a spirit of harsh criticism, but in the hope that our people may be awakened to their own interest, that we point out the similarity between the views of our people and their legislators and the opinions of savage races. We live ina highly civil- ized age, and if we fail to grasp its spirit we shall go to the wall before the oyster cultivators of the North- ern States, and those of Virginia and North Carolina, just as surely as the Indians have been exterminated 164 THE OYSTER. by the whites. We cannot resist the progress of events, but we can control it if we will be wise in time. It is not essential that a patient should know the nature and cause of his disease, but this knowledge is of the greatest importance to his physician, and it is of equal importance that the men who are called upon to legislate for the preservation of our oysters should clearly understand the true reason for their destruction. I state, then, in capital letters, that our beds are in danger, BECAUSE THE DEMAND HAS OUTGROWN THE NATURAL SUPPLY. There are only two possible remedies. Either we must diminish the demand by killing the packing in- dustry which has created it, or we must increase by artificial means the natural supply of oysters. Even if our natural beds could be restored and placed as they were twenty years ago, this would only delay for a few years their final exhaustion, for the de- mand is now far beyond the natural productive powers of our waters, and it is growing greater every day. The daily papers often publish letters from oyster- men who think that they can point out the true remedy, and the proposed remedies are almost as numerous as the authors, and nearly all the letters give statements which, while they are perfectly true, are based upon such narrow experience that they are of little or no value as contributions to a broad, comprehensive view of the problem. The tongmen know that most of the oysters have been taken away by the dredgers, and they therefore THE OYSTER. 165 advocate the prohibition or restriction of dredging. Ignorant of the fact that in localities where no dredg- ing has been allowed, the natural beds have been ex- hausted by tongmen just as soon as a demand for the oysters sprung up, they believe that the prohibition of dredging is all that is needed to restore the beds. The dredgers, on the other hand, attribute the injury to the law which allows the tongmen to take oysters for private use in the summer, forgetting that the beds of Connecticut are rapidly increasing in value under a law which allows not only tonging, but dredging as well all through the year. The small dredgers and scrapers hold that the larger vessels are destroying the oysters by the use of heavy dredges, although the Connecticut farmers find it to their interest to use on their own private beds far heavier dredges, which they drag over the beds by steam. Many of the oyster-packers, who carry on their busi- ness only in the winter, believe that all the damage is due to the oystermen who fish in March, April and May, and men who have money invested in the oys- ter business in Maryland believe that the exportation” of oysters in the shell, and especially oysters for plant- ing in Northern waters, is the cause of the mischief. All agree in throwing the blame on some one else, and all believe that some form of the business in which they are not interested is responsible for the present state of things and should be prohibited; but as the oyster navy is a convenient scapegoat, all parties unite in throwing the blame upon the officers of the Fishery Force. While the views of the oystermen are in this state 166 THE OVSTER. of confusion, all students of the subject are agreed as to the cause of the mischief. As Lieutenant Winslow well said in 1883, not only must the fecundity of the beds be preserved, but the market supply must also be kept up to the present demand, if not actually in- creased ; and is a cessation of dredging likely to ac- complish the latter end, when at present the vast fleet of pungies and canoes are straining every rope and windlass and openly violating every law of two power- ful States in order to find oysters in the required num- bers? The truth is that the Chesapeake beds are no longer equal to the demands made uponthem. Some policy must be adopted which will supplement the sup- ply granted by nature, or else the supply will surely fail. No mere restriction of the fishing can possibly ac- complish the desired end. It may prevent the extinc- tion of the beds as they are now, though that is doubt- ful. It certainly will not relieve in the least the pres- ent condition of the market. What should be done is to adopt a policy similar in essential features to that of Connecticut. The fishery of that State is one of the few instances of recuperation on record. I know of many destroyed oyster fisheries, and I know of a few that have been rebuilt, and I find one cause common to all failures and as common toall successes. In the first instance, the fishery has been common property, its preservation everybody’s business—that is, no- body’s—and consequently it has not been preserved. In the second instance, the fishery has been conducted and owned by persons singly and together as private property; it has been this, that or the other man’s THE OYSTER, 167 business to see to its preservation ; that is, its preser- vation has been everybody’s business instead of no- body’s, and consequently it has been preserved. Maryland cannot escape the action of universal laws, and the sooner those interested in the matter recognize the fact, and that a man does best by his own, whether it be a wheat or oyster farm, the sooner will a correct conclusion be reached regarding the oyster question. It seems as if there were little probability, even at the present day, of the necessary change in Maryland’s policy. Things of this kind, which so vitally interest our whole community, rarely get better until they have become decidedly worse. The current of public opinion must be turned in the right direction by dis- aster, caused by allowing ruinous systems to remain in force; but it is to be hoped that a point will soon be reached where our people will become alive to the situation and apply the remedy. If, however, the present system must remain in force, there are some suggestions which may be offered which, though they could never restore our lost in- dustry, might save our natural beds from complete destruction. One explanation which has been urged to account for the destruction of our oyster-beds is the wanton or unnecessary destruction of young oysters. Upon the piles of shells which are thrown out from the packing- houses great numbers of young shells can often” be found. They are, of course, dead, and as they are too small to be of any use, their destruction is a clear loss to our people. Itis impossible to prevent this from hap- pening occasionally, as in many cases the little oysters 168 THE OYSTER. are so small and'so firmly fastened to the old one that they cannot be removed without destroying them, and even if the oystermen could be compelled to throw back on to the beds any large oyster which has small ones fastened to it, there is reason to doubt whether this would be advantageous, for one full-grown oyster, like a bird in the hand, is more valuable than two small ones which may or may not grow up to matur- ity. I believe, however, that in cases where great numbers of young are fastened to the large ones, the use or destruction of them at the packing-house should be discouraged. This difficulty will disappear with the growth of the planting industry, for small oysters will then be valuable as seed, and they will pass into the hands of the planters instead of going to the pack- ing-houses. The true remedy, therefore, is the en- couragement of planting, and if our people would de- velop this business immediately, all need for special legislation would disappear. The destruction of young oysters at the packing- houses is trifling, however, compared with that which results from violations of the culling laws. Whena dredge is brought up from an oyster-bed it usually contains a few marketable oysters and great quantities of empty shells, which are often covered with young oysters. The law requires that these shells shall be thrown back upon the beds where they are taken, under a penalty of three years’ imprisonment, or three hundred dollars fine, or the forfeiture of the boat used, but the enactment of this law has failed to remedy the evil. It is and always must be very difficult to enforce a culling law, and as the captain of a dredging boat ~ THE OYSTER. 169 wishes to improve his time on the beds to the best advantage, and to make the most of pleasant weather while it lasts, it is, of course, to his interest to fill his boat as quickly as possible, and all hands are there- fore so fully employed in catching oysters that there is no time to cull them. Even when a captain is dis- posed to cull on the beds, he may be compelled by stormy weather,to run for harbor, and will then employ his crew in culling the oysters while lying in harbor. The shells are then dumped overboard in heaps around the anchorage, and even if the bottom should by chance be favorable for the growth of the oysters, they are smothered and killed under the heaps of shells. The only way in which this can be prevented is by ‘making it to the interest of the fisherman to save rather than to destroy the small oysters, and this can be done by the encouragement of planting. There is enough suitable ground under our waters to rear to maturity all the seed oysters which the natural beds can yield, and the time is sure to come when it will not pay the fisherman to destroy those which cannot be sold to the packers, and it will not be necessary to legislate for their protection. The aim of the culling law is twofold: first, to pre- serve the young oysters, and secondly, to compel the return of the dead shells to the beds, that they may serve for the attachment of spat. The value of these shells for this purpose is not very great, as they are usually decayed and slimy and cov- ered with sponge, but it is undoubtedly true that they are sufficiently valuable to justify the culling law. The dry, clean shells which accumulate at the packing 8 170 THE OYSTER. houses during the winter are far more valuable, and if ‘these could be returned to the beds in the summer, a great increase in fertility would certainly follow. The improvidence of the people of the United States in dealing with their oysters, so long as they were abundant, has been almost beyond belief. The early settlers found at their doors a supply which they re- garded as inexhaustible, and they not only used them — freely as food, but they also spread them upon their fields as manure, and poured them, alive, into their lime-kilns and iron furnaces. In the Northern States the beds soon showed signs of exhaustion, and these practices were prohibited by law. As it has taken our people nearly two hundred years to discover that we cannot afford to destroy oysters in this way, we can hardly expect them to per- ceive that clean, empty shells are also so valuable that their use for lime, road-making, etc., should be pro- hibited. I called attention to the very great value of oyster shells in 1879, in an appendix to the report of the Fish Commission, and showed that a great increase of fertility would follow the return of the shells to the waters of our bay. If this advice had been followed at the time it was given, our oyster-beds would now be much more valu- able, but no attention was paid to it. The Commissioners of Shell Fisheries of the State of Rhode Island, in their annual report for the year 1882, make the following statement upon this sub- ject: ‘The oyster shells, which have for years back been THE OYSTER. ' 171 considered almost worthless, have, within a short time, become valuable to the oyster fisheries. It is a well- known fact that large quantities of shells are purchased here from the oyster business, and these shells, which have until a short time been considered worthless, are now selling for from eight to ten cents per bushel, to be carried out of the State (mostly to New Haven) for the purpose of planting them in deep water in Long Island Sound, to catch the oyster spawn and for the raising of oyster seed. These shells are taken up at the expiration of two years, and, with the increase of oysters adhering to them, are brought back to the same parties selling the shells in the first instance, for the purpose of planting in our waters, and the price paid for them is from forty to fifty cents per bushel.” The statement which I made twelve years ago, that this is a matter of great importance, has been passed over in absolute silence and has attracted no attention. It seems now as if it were almost time that the enter- prise of practical Connecticut oystermen should have taught our people a lesson which they would not learn from a scientific student. Years ago I recommended that laws be passed requiring the return of shells to the beds. The simplest way in which this could be done would be to adopt the Connecticut plan of pri- vate farming, and we may be sure that just so soon as the fruits of private enterprise are secured to the cul- tivators, private interest will lead to the return of the shells to the water, as it has already done in Connec- ticut. One of the causes to which the destruction of our oyster-beds is often attributed is the exportation of 172 THE OYSTER. small oysters into other States. I have tried to gather information as to the extent to which this is practiced, but it is difficult to obtain exact statistics. In discussing this subject we must bear in mind the fact that Northern fishermen or boats are not allowed to catch oysters in our waters, and that the industry contributes to our State treasury and gives employment to our people; for all the oysters which are exported for planting must be purchased from our licensed fishermen. Any person who lawfully owns oysters clearly has the right to dispose of them in the best market, and nothing can be done directly to pre- vent our oystermen from selling to Northern planters when it is to their interest to do so. So far as the exported oysters are mature and mar- ketable for food, itis obviously to our interest to encour- age the business, which is perfectly legitimate. The only ground upon which the practice can be objected to is, that it leads to the sale by our people of oysters which would be much more valuable to them . if they could be kept in our own waters until they reached maturity. Oysters which cost the Delaware planters twenty-five cents per bushel are resold in a few months for eighty cents per bushel, and many of them are bought by Maryland packers. The policy of allowing our impoverished beds to enrich the citi- zens of another State is an unwise one, but it is proper to point out the fact that there is no reason why our own people should not themselves have this profit of 55 cents a bushel. It must be obvious to every one that the true remedy is to excourage planting in our own waters. We THE OYSTER. 143 have vastly more land suitable for the purpose than the State of Delaware, and as our own planters are on the ground, they would have no canal fees or transpor- tation to pay, and they could, if they choose, secure all these oysters for their own use, and gain the profit which now goes elsewhere. The development of the Maryland planting industry is, therefore, the true remedy for the evil. When we have, as we easily might, more seed oysters than we can use, the exporta- tion of seed will become a legitimate and profitable branch of the industry well worthy of encouragement. The favorite remedy for the difficulty, at least among those fishermen who are not dredgers, is the prohibition of dredging. Every one knows that our beds have deteriorated because they have been exces- sively fished, and every one knows, too, that most of this fishing has been done by dredgers. It is there- fore natural to conclude that since the dredgers have done the damage, the prohibition of dredging will cure the mischief, but this is by no means true. The great demand for oysters, which has come from the growth of the packing industry, has been supplied by dredg- ers, because the dredge is more effective and economi- cal than the oyster-tongs ; but if dredges had not been invented, the demand would still have been supplied by the much more expensive and laborious method of tonging, and the prohibition of dredging now would simply cause an increase in the number of tongmen. It would not, however, cause any increase in the wages of tongmen or in the price of oysters, unless the importation of oysters from States where dredging is permitted were forbidden, and this would require 174 THE OYSTER. an amendment to one of the most important clauses of the Constitution of the United States. The beds in deep water would escape, but they would then be, like many of the deep-water beds of Virginia, of no use to any one except pirates, and all the beds which could be reached by tongs would be as badly off as ever. In order to show that this is the case, and that where no dredges are used the excessive working of beds with tongs soon causes their destruction, we will here note a number of cases where beds have been exterminated with tongs alone. In 1874 the officers of the United States Coast oii vey found a number of fine beds of valuable oysters near Portsmouth, New Hampshire. Many fine beds were found in this region by the earlier settlers, but they were destroyed so long ago that none of the natives had any knowledge of oyster-fishing or any instruments for taking the oysters; but it happened that an old oysterman from the Chesapeake Bay was living near-by, and he sent to Providence for oyster- tongs and began tonging upon the newly discovered beds. His example was imitated so effectively that in five years the beds were exhausted and ceased to be productive. Ingersoll tells us that from the earliest times the borders of the Quinepiac River, near New Haven, Connecticut, have been the scene of oyster operations. The earliest settlers found on its shores great mounds of oyster shells, which showed that the Indians had resorted to its beds, season after season, for an un- known period. The first white fisherman found nat- THE OYSTER. [75 ural beds scattered over the bottom of the whole river, as well as in favorable areas along the eastern shore of the harbor. All of the beds were easy of access, and the result was that the raking of oysters was soon adopted as a business by many persons who lived near the water, and a considerable retail ped- dling trade was thus kept up throughout the neigh- borhood, in addition to the home supply. Wagon loads of opened oysters traveled in winter to the interior towns, even as far as Albany, and thence westward by canal. ' These beds continued to supply fine oysters for all the inhabitants of the surrounding country for many years, but they have long been worthless as a supply of food, although they still yield small oysters, which are used as “seed” for planting. The beds were ex- hausted by tongs, and it is interesting to note that nearly all of the oysters were removed in a single day in each year. After the beds were closed by law until November 1, great crowds assembled on the banks of the river, on the last night of October, and at the striking of midnight by the town-clock, began an attack which cleaned the beds of most of their mar- ketable oysters before the end of the day, and a few hours of this fishing resulted in the capture of all mar- ketable oysters. Native oysters were abundant at Wellfleet, on Cape Cod, at the time of the first white settlements, and for more than a hundred years the town was famous for its oysters, but they became extinct in 1775, through excessive tonging, although the inhabitants attributed their destruction not to their own rapacity, but toa 176 THE OYSTER. disease sent by Providence upon the oysters, as a punishment for the sins of the fishermen, who cer- tainly were more worthy of such an infliction than the helpless oysters. In all of these cases the exhaustion of the beds has been brought about almost or entirely without the use of dredges, although in a few cases dredges may have been used to a slight extent. The list might be greatly extended were it not for the fact that upon all the more southerly beds dredges as well as tongs have been used. Enough instances have been given to show that the prohibition of dredging will not save any bed which can be reached with tongs, and as the dredge is much more scientific, effective and economical apparatus than the rude tongs which it has superseded, there does not seem to be any reason why its use should be prohibited. In one way the use of dredges is a positive advan- tage to the beds. Ona natural bed which has never been dredged, the oysters grow side by side in clus- ters, so crowded together that they have no room to grow. Most of them die when very young, and the others become long and thin. The dredge breaks up and scatters these bunches, and gives the oysters room to grow and to become valuable; and by scattering the shells, dredging causes an increase in the area of the natural bed. It is asserted that the heavy dredges crush and kill the young oysters, and drag them into the mud and smother them, but the private farmers of Connecticut find it to their advantage to drag over their farms, by THE OYSTER. 177 the aid of steam, dredges very much larger than any which are used in Maryland. They use these heavy dredges in the summer when the young oysters are very small and fragile, as well as in the winter, yet their farms are improved by this treatment. It is undoubtedly true that little oysters are some- times broken and killed by the dredge, but the de- struction of oysters in this way is so slight as to have no significance. I have paid especial attention to the matter while dredging for oysters, and the number broken or injured by the dredge is surprisingly small. Young oysters fasten themselves flat upon the surface of attachment, and they do not begin to grow upand to become erect until they are large enough to crowd each other, and by this time they are large enough to withstand the dredge without injury. After most careful examination of the subject I am convinced that there is no objection to dredging which does not apply with equal force to all other methods of oystering, and the interest of the community de- mands the employment of improved methods and cheap and effective labor-saving appliances. What is needed is more oysters: not the prohibi- tion of effective methods of catching them. No animal upon earth, large enough to be valuable as human food, can long survive the attacks of anenemy who brings against it the resources, the destructive weapons, and the intelligence of civilized man. For- tunately, the resources which render man the most irre- sistible of enemies, also enable him to become a pro- ducer as well as a destroyer; and while the fear of him and the dread of him is upon every beast of the earth 178 THE OYSTER. and upon every fowl of the air, and upon all that moveth upon the earth and upon all the fishes of the sea, while they are all delivered into his hands and are powerless to resist him, he alone, of all animals, is able to make good his ravages, by agriculture and by domestication, by the selection and improvement of animals and plants, and by artificial propagation. In the year 1880 the fisheries census, and special investigations under the direction of the U. S. Fish Commission, proved that there had been a most rapid and alarming decline in the value of the shad fisheries in the rivers and bays and sounds of our Atlantic coast, and that there was every reason to fear that in a few years the shad would cease to be of any value as a food supply. The adult shad are oceanic fishes, but each spring they enter our inlets and bays and make their way up to the fresh-water streams where they deposit their eggs. The supply for the market is caught during this spring migration, when the fishes enter our inland waters heavy and fat after their winter’s feast upon the abundant food which they find in the ocean. As they spend most of the year gathering up and converting into the substance of their own bodies the minute marine organisms which would otherwise be of no value to man, and as their instincts compel them to bring back to our very doors this great addition to our food supply, and thus put at our service a great and fertile area of the ocean, which without their aid would be beyond our control and of no value to man, their economic importance is very great, and their extinction would be a national calamity. THE OYSTER. 179 In 1880 the fishermen of the interior believed that the fishermen in lower waters, nearer the ocean, were to blame for the decline of the fisheries. They com- plained of the erection of pounds and weirs along the shores of the salt-water bays and sounds, where the fishes were captured in great numbers far away from their spawning grounds. They believed that legisla- tion could save the fishery, and that if these obstruc- tions were prohibited by law and 1emoved, and all the shad were permitted to reach fresh water before they were captured, enough eggs would be deposited to keep up the supply, but that the destruction of such numbers in salt water must necessarily result in exter- mination. This seemed to fresh-water fishermen to be good logic, but the salt-water fishermen took a different view of the matter. They wanted more legislation them- selves, but of a different sort, and claimed that what was needed was protection for the shad upon the spawning ground. They said that they themselves fur- nished most of the shad for the market; that without them the cities could not be supplied, and that enough shad gescaped their nets and reached the fresh water to supply all the eggs that were needed, if they could be left to lay their eggs in peace. In 1880 there seemed to be good sense in this view also, and it was difficult for a disinterested outsider to tell who was right. The only thing which seemed clear was that the shad were growing scarce, and that, if the Legislature did not do something to protect them, they would soon be exterminated. In 1888 more shad were caught in salt water than 180 THE OYSTER. were caught altogether in 1880, and yet the shad fish- eries are now increasing in value from year to year, and this change has been brought about, not by the enactment of new laws to restrict the fishery, but by the production of more fishes. In 1880 the U. S. Fish Commission began, sys- tematically and upon a large scale, the work of collect- ing the eggs from the bodies of the shad which were captured for the market, in the nets of the fishermen. These eggs were artificially fertilized and the young were kept fora short time in hatching jars, and the waste of eggs was thus prevented. This work has been prosecuted steadily ever since, and the results, up to the end of the season of 1888, are given in the follow- ing table: TOTAL NUMBER OF SHAD TAKEN EACH YEAR. In Salt and Percentage of in- Brackish Water. In Rivers. Total. crease over 1880. 1880 2,549,544 1,591,424 4,140,968 T68§ ‘3,207,497 1,900,434. 5,172,031 25 pemecre i886. — 3,098;708 . 2,485,000... 5,554,308 34. es 1987 3,013,744 2,901,001 6,715,405 _ 62 | ae 1888 5,010,101. 2,650,373 ~7,600,474 85 am The money value to the fishermen of the excess in 1888 over the total catch of 1880 was more than $700,000. I have no record for 1889 or 18g0, but last year, 1890, the fisheries were more profitable than they have been for many years, and our markets were stocked with an abundance of fine shad, which were sold at prices which ten years ago would not have been thought possible. The percentage of increase in 1889 - THE OYSTER. I8I and 1890 has been much greater than it was in any of the years given in the table, and this result is not due to any change in the method of fishing. It is exclu- sively due to the increase in the supply. The conditions are now more unfavorable than ever to natural reproduction, and it can be proved that if no shad had been produced by man, while the other factors had remained as they now are, the fisheries would be completely ruined and abandoned. The mature fishes are now excluded by dams and other obstructions from the most valuable spawning grounds, and the area which is now available is re- stricted to the lower reaches of the rivers, where there is little proper food for the young, and where the bot- toms are so continually and assiduously swept by drift nets and seines that each fish is surely captured soon after its arrival, The number of eggs which are naturally deposited is now very small, for while the spawning-grounds have increased from 1,600,000 to 2,600,000, the take in salt water has increased from 2,500,000 to 5,000,000, and the shores of our bays and sounds are now so lined by fyke nets and pounds that the number of shad which reach the spawning- grounds at all is proportionately much less than it was in 1880, and more shad are now taken each year in salt water, where spawning is impossible, than were taken altogether in 1880. This fact, rightly considered, means that the shad is now an artificial product, like the crops of grain and fruit which are harvested on our farms and orchards. If more shad than the natural supply were taken in 1880 in all waters, and if still greater numbers are now 182 THE OYSTER. taken each year in deep water, before they reach the spawning-ground, it follows that we are now entirely dependent upon the artificial supply. | This short history will serve to show that we must look to an increase in the supply of oysters as the only remedy for the scarcity, and that we can hope for no benefit from new laws to regulate the method of taking the oysters. I must insist, however, upon one most important difference between the shad and the oyster. The shad goes out into the ocean to pasture, and it is at this time beyond the direct control of man. During its migration it may pass through the waters of two or three States before it reaches its feeding-ground, and private ownership and protection of shad is impossible. The work of shad-hatching is therefore a proper object for the employment of the Government, but there is no reason for Government oyster-farming, for the oyster is as sedentary as a potato, and it is there- fore perfectly adapted for propagation by individuals. Among the remedies for the destruction of the oys- ter-beds the shortening of the season is a favorite measure, and it has many advocates. This remedy seems, at first sight, to be an effective one, but a little thought shows that it is, in reality, of no very great value. So long as our present oyster policy is maintained it will be necessary to have a closed season to facili- tate the enforcement of other legal measures, but as it is clear to every one that a great number of fisher- men working upon a bed for a short season will do just as much damage as a lesser number working for ~ THE OYSTER. 183 a longer time, we cannot hope that laws to shorten the season will, in themselves, effect any great improve- ment in the condition of the beds. Ingersoll gives a very vivid description of the method of fishing in early days, upon one of the natural beds of Connecticut, and as this bed was finally exterminated by little more than one day’s fishing in each year, we quote his account in order to show how little protection a closed season can afford. Ingersoll says: “ The law was ‘ off’ on the Ist day of November, and all the natural beds of the State became open to any person*who wished to rake them. In anticipation of the date, great preparations were made in the towns along the shore and even for twenty miles back from the seaside. Boats and rakes and baskets and bags were put in order. The day before, large numbers of wagons came toward the shore from the back country, bringing hundreds of men with their utensils. Among these were not unfrequently seen boats, borne in the rigging of a hay-cart, ready to be launched on the expected morning. It was a time of great excitement, and nowhere greater than along the Quinepiac. On the day preceding, farmers flocked into Fair Haven from all the surrounding country, and brought with them boats and canoes, of antique pat- - tern and ruinous aspect. These rustics always met with a riotous welcome from the town-boys, who hated rural competition. They were very likely to find their boats, if not carefully watched, stolen and hidden before they had a chance to launch them, or even tem- porarily disabled. These things diversified the day and enlivened a community usually very peaceful, if 184 | THE OYSTER. not dull. As midnight approached, men dressed in oilskin, and carrying oars, paddles, rakes and tongs, collected all along the shore, where a crowd of women and children assembled to see the fun. Every sort of craft was prepared for action, and they lined the whole margin of the river and harbor on each side in thick array. As the ‘witching hour’ drew near, the — men took their seats with much hilarity and nerved their arms for a few moments’ vigorous work. No eye could see the face of the great church clock on the hill, but lanterns glimmered upon a hundred watch- dials and then were set down, as only a coveted minute remained. There was a hush in the merriment along the shore, an instant’s calm, and then the great bell struck a deep-toned peal. It was like an electric shock. Backs bent to oars and paddles churned the water. From opposite banks, waves of boats leaped out and advanced towards one another in the dark- ness, as though bent on mutual annihilation. ‘The race was to the swift’ and every stroke was the mighti- est. Before the twelve blows upon the loud bell had ceased their reverberations, the oyster-beds had been reached, tongs were scraping the long-rested bottom, and the season’s campaign upon the Quinepiac had begun. Ina few hours the crowd upon some beds would be such that the boats were pressing close to- gether. They were all compelled to move along as one, for none could resist the pressure of the multitude. The more thickly covered beds were quickly cleaned of their bivalves. The boats were full, the wagons were full, and many had secured what they called * their ‘winter’s stock’ before the day was done, and - THE OYSTER. 185 thousands of bushels of oysters were packed away under blankets of sea-weed, in scores of cellars. The first day was the great day. By the next day the rustic crowd had departed, but the oysters continued to be sought. A week of this sort of attack, however, usu- ally sufficed to clean the bottom so thoroughly that subsequent raking was of small account.” For a few years the bed was able to resist this attack and recover from it, but it was not long be- fore all the mature and full-grown oysters were caught, and at the present time the bed does not yield market- able oysters, although it still provides seed oysters for planting. | It is clear from the history of this bed, and of many others which might be referred to, that as oysters grow scarce and the demand for them increases, the only effect of a closed season is to assemble all the oystermen upon the bed at the end of the season. The oysters which would otherwise have been removed slowly are then taken away rapidly, and the plan has no advantages as a means of protection unless the closed season is long enough to allow a new genera- tion of young oysters to grow up and replenish the beds. Although the closure of the beds for a part of each year is of very little value in itself, a closed season is a great help in the enforcement of other means of pro- tection, and many of the States which own oyster-beds have passed laws to prevent the taking of oysters in certain months. In Massachusetts any resident may take oysters for family use between September Ist and June Ist, but no ey: 186 THE OVSTER. one can take them without a permit between June Ist and September Ist, although the local authorities have the power to grant permits to fish for oysters at any time. Some of the public beds of Rhode Island are open to residents between September 15th and May 15th, while others are open only between April Ist and June 15th, but no one can take more than twenty bushels in one day. Connecticut has no closed season, and her public as well as private beds are fished at all times. The beds in the river Thames, however, are closed by a local law between March Ist and September Ist. New York has local laws for the closure of the beds of certain regions at specified times, and some of the towns have town laws to the same effect; thus the beds of Great South Bay are closed by a State law from March Ist to September Ist, and those in Harlem river from June Ist to August 30th, while the town of Brook- ham has a town law closing the beds, which furnish the well-known “ Blue Point” oysters, from June 15th to October Ist. In certain counties of New Jersey the closed season — is from May Ist to September Ist; in others from July Ist to September Ist, and in still others from May Ist to October Ist. The public beds of Delaware are closed from April 30th to September Ist. In Virginia the closed season is from May Ist to September Ist, but any resident may catch two bushels a day for family use, and any owner of planted oys- ters may catch them at any time and in any quantity for family use. THE OYSTER. 187 In Ireland the season opens on September first in some localities, on October first in others, and on November first in others, and it closes on March first, April first or May first. It is unlawful to possess any oysters during the closed term. The inspectors of fisheries can call a meeting of interested persons to decide upon a change in the closed season. In the English Channel the closed season, as estab- lished by the concurrent legislation of England and France, is June sixteenth to August thirty-first, and any boat found at this time with a dredge aboard is held guilty of a violation of the law. In Maryland in 1884 no dredging was allowed be- tween April 1st and October 15th, and no oysters in the shell could be carried outside of the State between April tst and September Ist. There is also a State law in the following words: “It shall be unlawful for any person or persons to take or catch oysters, except for private use, to the amount of five bushels per day, or for sale of the same to any citizen or citizens of the neighborhood, and to them only for the purpose of being consumed when sold, or for the purpose of re- planting or bedding in the waters of the counties wherein they are caught, or for sale to the citizens of the county wherein they are caught, and to them only for the purpose of replanting or bedding in the waters of said counties, between the 15th day of April and the 1st day of September.” A special aé@t of the Legislature is needed to ex- plain what the ambiguous wording of this section is intended to prohibit or permit; but Sec. 13, of the Act of 1874, for which the words above quoted 188 THE OVSTER. were substituted in 1880, forbids the taking of oysters during the closed season, except for private use, or for the purpose of replanting, or for sale to the citizens of the county next adjoining. It is, therefore, prob- able that the framers of the present law wished to per- mit by it the taking between April 15th and September Ist of oysters to be sold to residents of the neighbor- hood for food, or to citizens of the county for planting, and also to permit the taking of five bushels a day for private use. It will be seen by examination that almost the only thing which these laws have in common is the prohi- bition of oyster-fishing in the summer months, and to _this there are exceptions, as some of the Rhode Island beds are open only in the summer, while those of Con- necticut are open at all times. This provision, which is borrowed from the laws for the protection of game, is based upon the fact that this time is the spawning season. Game birds soon desert a region where they are disturbed in the breeding season, and as they lay few eggs and care for their helpless young, the de- struction of an old bird at this time may result in the death of the whole brood. The provision of the game law which forbids the capture of game during the breeding season is therefore a wise one, but oysters are very different from game birds. They discharge vast numbers of eggs into the water, but they take no care of their young, and while it is true that the re- moval of too many mature oysters from a bed destroys its productiveness, the time when they are removed is a matter of no consequence, and overfishing in De- cember is in this respect as bad as overfishing in May. | THE OYSTER. 189 I have made a study of the spawning time of our oysters,and have carried my observations over several years. I have found spawning oysters in our waters in every month in the year except December, January and February, and I have had no opportunity to visit the beds during these three months. By far the greater number of these oysters, how- ever, are found to spawn between May 2oth and July Ist, and although the temperature of our spring months causes considerable variation, this period may properly be called the spawning season. At any time before May 2oth, the disturbance of the beds can do little harm, and the experience of the Connecticut oyster- farmers shows that the thorough raking of the beds just before the spawning season is a positive benefit. The young oysters cannot attach themselves to dirty and slimy shells, and if all the sponges, hydroids and sea-weeds could be dragged from our beds in April and May, and if the old decayed and slimy shells could be plowed under and covered with the cleaner shells from below the surface by dredging just before the spawning season, the fertility of the beds would be greatly increased, and there is, therefore, nothing in the nature of the oyster to demand the closure of the beds in April and May. I believe that no increase in the value of our beds can be hoped for until it is brought about by private cultivation, and that the State should use every possi- ble means to foster and encourage the oyster-planting and oyster-farming industries. I show elsewhere that the States where the oyster industry is most prosper- ous have found it necessary and to their advantage to 190 THE OYSTER. use the natural beds chiefly as a supply of seed for planting,and I believe that whenever the people of our State are prepared to use our great natural advantages for oyster culture, it will be wise to throw open the natural beds in the summer time, but at present such a measure would simply result in the depletion of the beds, without any compensating advantage. Soon after the young oysters are born they fasten themselves to stones, gravel, empty shells, living oys- ters and other clean, hard substances. They are.at first so small and flat that they are in no danger of injury by dredgers, and there is, therefore, no reason why the taking of marketable oysters should not be continued all summer if the large oysters could be taken away without the young ones, but these are at first so small that they are invisible, and for several months they are too small to be removed from the shells of larger oysters. As it is very difficult to enforce culling laws, the opening of the public beds immediately after the spawning season would cause millions of the small oysters to be carried away on the shells, and even if the culling laws could be enforced, many of the small oysters would be carried away on the large ones. This would be a great advantage if the small oys- ters were used as seed for planting, but at present most of them are destroyed. I therefore believe that, for the present at least, the public beds should be closed for as long a time as possible in the fall, in order to give the young oysters time to grow large enough to render it possible to detach them from the larger ones and from the shells. - THE OYSTER. 19I I also think that each public bed should be examined annually in order to determine how many oysters it can yield without injury. This examination should be made in August or September, in order to learn how many young oysters have settled upon the bed, and as the analysis and publication of the results of this ex- amination would require at least two months, the open- ing of the public beds should be postponed as long as possible. After the closure of the packing-houses in the early spring, most of the oysters which are taken are sold outside the State at a very low price to planters, who, in many cases at least, resell to Maryland packers in September and October at a great advance. If our own people would themselves engage exten- sively in the planting business, or if our beds were not already overtaxed, it would be wise to encourage the taking of seed to be sold to Northern planters, as this is one of the legitimate sources of the demand for our oysters. As soon as our people engage extensively in oys- ter-planting, and need these months to gather their seed oysters, and as soon as our beds are sufficiently prolific to supply Northern planters, we believe that the beds should be thrown open until June Ist, or even longer. The experience of Connecticut, where both public and private beds are open throughout the whole year, and are rapidly increasing in value, shows that a closed season is not necessary for the preservation of the beds. As the closed season is a matter of policy, and is 192 THE OYSTER. not due to the nature of the oyster, I believe that it should be made absolute, and that all laws which per- mit any one to take any oysters from the public beds at that time should be repealed. It is possible to stock oyster-farms and planting- grounds without drawing upon the public beds, and there is no reason why those oyster-planters who wish to get their seed from the public beds should not do so after the oyster season is opened. It is true that they would then have to compete with the prices paid by the packers, but as our present oyster policy is opposed to any private interest in the beds, there is no good reason why a planter should have oysters from the public beds any more cheaply than any one else. The law which allows any person to catch oysters from the public beds at any time for family use or for sale in the neighborhood, is a wide loophole for infringement of the law, and so long as our present oyster policy is adhered to, I believe that the public beds should be absolutely closed during the closed season. | ON THE ADVISABILITY OF DIVIDING OUR OYSTER AREA INTO OPEN AND CLOSED DISTRICTS. We cannot hope for any marked improvement in the condition of our oyster-beds through the enforce- ment of laws closing them for certain months in the year. | The rapidly increasing demand for oysters must be supplied in one way or another, and the effect of a closed season is simply to gather the oystermen upon THE OYSTER. 193 the beds in greater numbers than ever at the end of the season. This is equally true whether the closed season is long or short. If our waters, or any part of them, should be closed to the public for a term of years, the oysters would increase and multiply and finally restock the beds. It is difficult to state exactly how long a time would be required, as this depends upon the con- dition of the beds. When there are plenty of mature oysters to supply the spat, and plenty of clean shells for the young to fasten upon, a few years will suffice to restore the bed; but after an oyster-bed is thoroughly exhausted there is no reason why another natural bed should ever grow up in the same spot rather than any- where else, and in any case the closure of certain districts cannot increase the supply beyond its natural limits. In some parts of France the oyster territory has been divided into sections, and each section is fished in turn while the others are closed and left to repair their losses. We are told bya recent French writer that, while the provinces which have made use of this system have been able to preserve their beds from complete ruin, they have not been able to increase their fruitfulness or to restore them to their ancient splendor. Even if the waters are loaded with spat from ad- jacent beds, there is no reason why the young should gain a foothold on the site of the exterminated bed. Between the natural beds there are areas where the bottom is perfectly adapted for oysters, except that there is nothing for the spat to fasten to,and an exter- minated natural bed is in the same condition. 9 194 THE OYSTER. The regrowth of such a bed is, therefore, exactly like the original formation of a natural bed, and it must be a very slow process indeed; how slow it is very difficult to say, as we have very little information which will help us to decide, although we have facts to show that a century may not be long enough. When New England was settled there were very many valuable beds between Cape Cod and the north- ern limit of our coast. Many of these beds were destroyed so long ago that we have no records of the date when they ceased to be productive, and others were yielding oysters about one hundred years ago. There are still a few scattered oysters at certain points on the coast, and we may be sure that the conditions are still favorable, but there is no evidence to show that any of these beds have become restocked, although some of them have certainly been untouched for two hundred years or more. It is possible that the beds which were discovered by the United States Coast Survey in 1874, near Portsmouth, New Hampshire, have grown there since the oysters were exterminated,a hundred years before. This region was renowned among the Indians for its oysters, and in 1697, a river emptying into the bay was known as Oyster River. One hundred years ago a number of vessels were loaded with oysters there, but since that time the region has yielded no oysters until 1874, when the officers of the United States Coast Survey found about a dozen large beds or clusters of beds in about ten feet of water. It is impossible to state whether these beds occupy the place of the beds which were exterminated a cen- tury ago, but it is probable that most of the old beds - THE OYSTER. 195 were in shallow water. The bay must have contained enough oysters to furnish spat, and as no new beds have grown up in shallow water, we are forced to con- clude that, even when spawn is present, a period of a hundred years is not enough to restore a bed which has been completely destroyed. The adoption by the State, of a plan to close certain districts long enough for the beds to recover, would, undoubtedly, delay the work of extermination, but it would also cause an immediate decrease in the supply. I believe that if our present policy is continued, measures of this kind must be adopted, but such an expedient can have only a temporary value, as it will do nothing in itself to enlarge our oyster area, or to increase the productiveness of our waters. I believe that the districting plan is neither a real remedy nor the best method for arresting the destruc- tion. Itis the best which can be put into force without delay, but while recommending it, I feel that it is my duty to call attention to the fact that there is a still better method, although it is one which would require considerable time and the expenditure of large sums of money. Under natural conditions each bed is able to yielda certain number of oysters each year, and whenever this number is exceeded the bed suffers, and if the practice is continued it must be destroyed. It makes no difference whether the oysters are taken in one month or in twelve, or in one year or in five. The ultimate effect upon the bed is the same in all cases. In the absence of measures for artificially increasing the productiveness of the oyster grounds, or even when 196 THE OYSTER. such measures are employed, the only way to effectu- ally protect a bed is to examine it each year, and to learn how many oysters it can furnish without injury, and to take such steps as may be necessary for pre- venting each bed from being drawn upon in excess of its capacity. When the natural beds are small and few in number - it is easy to do this, and the plan has been employed in some parts of our own country, and also in many parts of Europe, where a few guard-boats are enough to protect the beds, and to learn how many oysters are taken from each one. | The waters of Maryland cover nearly one-third of the whole area of the State, and as oyster-beds are found in nearly all our waters, there are very great practical difficulties; and the attempt to learn how many oysters are taken, and how many should be taken from each bed, demands great executive ability anda large and well-trained and equipped force. Our pre- sent Fishery Force is totally incompetent to under- take such a work, and no force could do it efficiently without devoting much time to organization and to pre- liminary work. The restriction of the crop according to the capacity of the bed is absolutely necessary, if our beds are to remain public property, and it must be brought about in one way or another. The result can be reached by a system of intelligent private cultivation upon grounds held for the purpose upon long leases, or deeded outright by the State; for personal interest is the strongest motive which can exist to prevent the needless destruction of property. THE OYSTER. 197 If all our oyster area were divided up into private holdings, the whole could be watched and its condition and capacity much more carefully and exactly ascer- tained, than can ever be the case under State manage- ment, and an enlightened system of private cultivation would be the most sure safeguard against the exhaus- tion of the beds. The first step, the survey of all the beds and the construction of accurate maps, would employ a large and well equipped force for several years. After all the beds are mapped, a large force will still be needed to make the annual examinations, and to obtain the data which are needed to determine how many oysters each bed can yield without injury. The enactment and enforcement of the necessary laws would even then present many difficult and com- plicated problems, but if our public beds could be placed for a term of years under the supervision of an officer or a commission to study the subject, and to superintend and direct the survey and examination, and to develop a plan for protection; and if compe- tent persons could be found to devote themselves to this work; and if an efficient navy, under the com- mand of trained officers, could be employed to act under their supervision and direction, a practical and efficient plan could no doubt be devised and put into execution. Possibly the same thing could be accom- plished by an organized co-operative company of oystermen. CHAPTER. VI. A TALK ABOUT OYSTERS. An intelligent and successful farmer, visiting an oyster-packer in Baltimore, said: “I know nothing of oysters except what I have heard, but I wish to know more, and I should like to ask you a few questions. Since I have been here I have seen in the newspapers most glowing statements regarding the advantages of Maryland for producing oysters, yet I am constantly being told that all branches of the oyster industry are depressed and in a most discouraging condition. The last two or three winters have been very mild and, I should suppose, very favorable for work upon the beds; yet I hear that few of the oystermen earned enough to pay expenses last year, and they all say that this winter matters have been very much worse. Your friends in the packing business tell me that the oysters are deteriorating in quality, and that they are growing so scarce that some of the packers have moved away from Baltimore. You say that people in Australia and New Zealand, as well as in Europe and in all parts of our own country, who formerly ordered great quantities of Maryland oysters, no longer patronize you. I hear you complain that, while your business is falling off, you have more and more diffi- culty each year in filling your orders, and I can see THE OYSTER. 199 for myself that your oysters are not as fine and sub- stantial as they used to be. You tell me that you buy Virginia and North Carolina oysters, although your own beds are right here at home. Now I should like to know whether the waters of Maryland are not as fit for growing oysters as those of other States ?” “Most certainly they are,’ answered the packer. “ We all know that our waters are capable of producing the finest oysters in the world in immeasurable abund- ance. Like all citizens of Maryland, I am very proud of this great natural resource, and I regard our oyster grounds as by far the most valuable land in our State.” “What is the trouble? Is the demand too great to be supplied from your own waters ?” “That is a difficult question to answer in a word. For some time past the demand has exceeded the sup- ply from the natural beds, which formerly gave us all the oysters we needed; and as the eating-houses and the private consumers in the city take all the best, lam forced to send my customers oysters too young to be palatable and nutritious. But the demand from all sources has never reached anything like the amount which our oyster-beds might easily be made to yield.” “T cannot make your two statements agree. The sale and consumption of immature oysters seem to me like mowing down young wheat to make hay. Why is nothing done to increase the supply? Iam told that in Delaware and New Jersey, in Rhode Island and in other States which have no great natural advantages, such as you claim for Maryland, the value of the natural supply has been very much increased by placing the young ‘seed’ oysters on 200 PELE. OYSTERS bottoms where they grow and improve until they are ready for the market. In my experience as a market- gardener I have found that while onions a year old can be sold, it is much more profitable to plant them as ‘seed’ a second year, and to give them another season’s growth before sending them to market. In- stead of packing and selling these small oysters, why do you not treat them as I treat my ‘seed’ onions? Are there no lands in your State suitable for oyster- planting ?”’ “You need only to look at a map of Maryland for an answer to that question. We have nearly three hundred miles of coast-line, all of it broken up into creeks and inlets and sounds and bays. A\ll these are well adapted for oyster-planting, and might easily be made much more so. Besides this we have thousands of acres of low, marshy land, of no value at present. Ata slight expense this might be converted into sys- tems of artificial oyster-ponds, where oysters could be stored and held for a favorable market, and where they would grow and increase in value, like your seed onions.” “This is most surprising. How is it that these natural advantages are not seized upon and developed? Do not your people know the importance and profit of oyster-planting ?” “Certainly they do. Oyster-planting has been car- ried on ina small way for many years, and there are many men in our State who understand the business thoroughly. Besides, we have a most remarkable illustration of its value only a few miles beyond our border. At Hampton Roads, in the lower part of the THE OYSTER. — =n bay, the planting business has recently been pushed with great energy and enthusiasm. It is conducted on such a large scale that a big steamboat is now loaded with very fine oysters every day, from grounds which six years ago did not supply enough to meet the local demand.” “T am told that in Connecticut it has been found possible to grow oysters from the eggs, in the way that I grow wheat and corn; and to establish new oyster-beds in deep water by covering the bottom with oyster shells, to catch the floating embryos. Is there no place in the bay where this can be done?” “Most assuredly there is. No place in the world is better suited for oyster-farming. We have hundreds of thousands of acres which are most valuable for this purpose, and experiments have shown that there is no part of the bay where new beds might not ultimately be established by snes the bottom, or by the use of other spat-collectors.” “Why don’t you doit? Howcan you Je aaoiaha of the scarcity of oysters when you have such an opportunity for oyster-farming? Is not the business profitable?” “You may judge of this for yourself when I tell you that, in good places, a crop of five or six thousand bushels a year might be harvested from-each acre, with very little labor or outlay. No other branch of oyster culture gives as much profit upon the investment of capital and labor as deep-water oyster-farming.” “Does no one in Maryland understand the busi- ness?” “Oh yes! Many of our packers do business in Connecticut, and they have seen for themselves how 202 THE OYSTER. oyster-farming is carried on. They sell to the Con- necticut farmers the shells which they scatter over their land to collect the spat, and there are many citi- zens of Maryland who know all about the business, and even some who have attempted to put the Con- necticut methods into practice in our own waters.” “Were these attempts unsuccessful? Are the oys- ters exposed here to dangers which do not exist in Long Island Sound? Iam told that in Connecticut oysters in shallow water are often killed by ice, and that the deep-water farms are open and exposed to violent storms which, in the winter, often drive the loose sand and mud over the oysters and bury and destroy them. I hear, too, that the farmers suffer from the ravages of starfish. They tell me that these ani- mals often come up in great armies, on to the beds, from outside, and that they destroy whole farms, leaving behind them only the empty shells. Do these accidents and enemies threaten the farming industry in Maryland?” “Not at all,” answered the packer. “ Weare so for- tunate as to have none of these causes of failure. While the water of our bay is perfectly adapted for oysters, it is too fresh for starfish. They are some- times found in the lower part, near the ocean, but they are never numerous enough to do much damage. Our climate is too mild for the ice to do much harm, and the bay is so well sheltered and landlocked that there are few places where oysters are exposed to much danger from storms. Most of our bottoms are so well protected that the hardest winds cause very little movement.” “You say oyster-farming has been tried in Mary- land. Was it successful ?”’ THE OYSTER. 203 “That depends upon what you mean by success. I can tell you of one farmer who, on about seventy acres of bottom in Virginia, close to the Maryland: line, raised a crop of more than three hundred thous- and bushels of fine oysters.” “ He must be making a great fortune. How does it happen that his example is not followed ?” “ He reared his oysters, but he did not harvest them. They were taken by the dredgers.” “Do you mean that they were stolen ?” “Oh, no. That is not the word to use. While he was getting ready to gather his crop, the dredgers, who had paid our State for licenses to take oysters, got ahead of him and captured them.” “Were the robbers discovered and punished ?” “They were not robbers, and they were not pun- ished. The owner of the oysters, who knew many of them personally, remonstrated with them, but he could not persuade them to go away.” ‘What do you mean? I do not understand the state of affairs which you describe.” “Why, you see, our people have always regarded the oyster-beds as the property of the whole State. They are natural wealth which has not been produced by man, and no one person has any more right to them than another. They belong to all the citizens of the State in common. We all inherit a share in them as part of our birthrightas Marylanders. Our people are therefore opposed to any system which would lead to monopoly and would give to a few the exclusive enjoyment of the natural advantages which belong to all.” 204 THE OYSTER. ‘That seems wise and just, but most of your citi- zens have other occupations and do not wish to engage in oystering. How do they dispose of their common rights ?” “We have a system of licensing, and any citizen who wishes to gather oysters on our common property pays to the State treasury a fee for the privilege of. doing so, and in this way all the people of the State get the benefit of our natural wealth.” “T see. All your people are enriched by the sums paid by a few dredgers for the monopoly of the com- mon rights of the citizens, for this must be very great, to judge by all you say of the value of your waters.” “No; that is hardly true, [ am sorry to say. The profits are not so great as you suppose. In fact there are no profits atall. The dredgers themselves are not prosperous, and they do not like to pay this tax out of their hard earnings for the use of what they regard as their own. Many of them would evade it if they could, so the State is forced to maintain a navy to pre- vent unlicensed dredging, and this costs more than the: total sum received for licenses.” “ How is this deficiency made up—by the taxpayers of the State ?” Mes 2 “T see. But does it not seem to you that this means that the people of Maryland pay taxes for the privi- lege of giving up their natural rights for the benefit of a monopoly ?” ‘““Yes, I suppose it does; but then we have the satis- faction of knowing that we have benefited a large class of our people, and have afforded employment for many worthy citizens of our State.” THE OYSTER. 205 “That is true; but I learn from the papers that foreign emigrants are met by the agents of the dredg- ing captains, when they land at the wharves in New York, and that they are then engaged for service on the Maryland oyster-boats. How can this happen if the right to dredge upon the public beds is so highly prized by your people?” “A dredger’s life is very hard. The boats are small,and when they are loaded with wet, cold, muddy oysters there is not much room left for the crew. The work is done in the most stormy months of the year. The dredgers are exposed to all the hardships and dangers of a sailor’s life, and to some which are pecu- liar to oystermen. The heavy dredges are hauled by hand while the boat is under way. If they become foul while they are being hauled in, all the weight of the boat is thrown on to the windlass, and the laborers, benumbed by the icy water and unable to move quickly, are often struck by the crank. Fatal accidents from this cause arenot uncommon. Of late years the business has not been profitable. The boats do not pay expenses, and the owners cannot offer tempting wages. Maryland men, who know all the hardships of a dredger’s life, are not anxious to ship as hands on a dredging boat, so the captains are forced to recruit their crews among men who are not so well posted.” “Can nothing be done to improve the dredger’s life? Why do they not dredge in the summer and keep the oysters in planting grounds until there is a market for them?” “ The law does not permit dredging in the summer.” 206 THE OYSTER. “Why do they not use larger vessels, and haul the dredge by steam ?” ‘““As the amount of the license fee depends on the size of the boat, it is for the owner’s interest to use a small vessel and pack it as full of oysters as possible. The use of steamboats is not allowed, and the law re- quires that the dredge shall be hauled by hand.” “How does it happen that with all your natural advantages the work is so unprofitable ? ” “Our people have always been taught that our natural beds are inexhaustible, so nothing has ever been done to determine just how many oysters they could furnish each year without injury, and the result is that they have been overworked until they are so nearly exhausted that they no longer furnish a living for the oystermen.”’ “T think,” said the farmer, “that I begin to under- stand the situation. It seems something like this. As the beds belong to the community, private oyster culture has not been permitted, since it would be a monopoly. Yet the common property of the citizens of the State has been given up to one class of citizens in order that they might have profitable employment. They have not managed their trust wisely, and have brought it so near the verge of ruin that it is no longer attractive to Marylanders, and they have called in the cheaper labor of foreigners. To give these foreign laborers employment the people of the State have not only given up their rights, but have also paid taxes for the support of the navy. This state of things cannot last. What do you propose to do about it?” CHAPTER, VII. THE REMEDY. Looked at as a question in natural history, the oys- ter problem is very simple. The demand has outgrown the natural supply, but it is easy to increase the supply indefinitely by oyster culture, and this is all that is needed. ; As a practical question it is anything but simple. It demands the best thoughts of all who are interested in the welfare of our people. The practical applica- tion of the remedy is proper work for statesmen of the greatest ability and widest experience, rather than fora naturalist who knows little or nothing of complicated social questions. The interests at stake are so important and vast that they are worthy the best efforts of the best intellects in our community, and any statesman who wishes to devote himself to the unselfish, disinterested service of the people will find in the complications of the oys- ter problem an ample field for the exercise of all his powers. So many divergent and conflicting interests are involved, and so many side issues are to be con- sidered, that hasty, ill-advised action is sure to do more harm than good; yet we have permitted matters to run on so long without attention, that little time now remains for deliberation or experiment. 208 3 THE OYSTER. It is with reluctance that I venture to speak at all on the practical question of the reconstruction of our oys- ter policy. I feel that I have done my part by show- ing the capacity of the oyster for cultivation; by calling attention to the unexampled opportunities for oyster-culture afforded by our waters, and by de- scribing the methods which should be used to improve these opportunities and to develop our resources. So far I have dealt with facts, not opinions; and as facts have permanent value, I hope that what I have written will help to establish a clearer understanding of the needs of our oyster industry, and that it will thus lead in time to the adoption of wise measures for its pro- tection, and for promoting its growth and development. Here I feel that my work should end, and that the practical details should be left to those who have had experience in public affairs; and if I venture to discuss details, I do so with the full knowledge that I am out- side my proper province; that I am no longer dealing with facts, but with opinions which must meet with criticism and discussion. The reflections of any one who has thought seriously upon the oyster problem are worthy of attention, for the true solution can only be reached through the examination of all sides of the question, and I have therefore decided to devote the concluding chapter of this book to the expression of my own opinion of the way in which a new oyster policy should be introduced. Every one agrees that whatever may be the remedy, our method of managing the oyster industry so far has been a failure. It has had a thorough trial, extending through many years, and here are some of the results: - THE OYSTER. 209 It has yielded on the average some ten million bushels of oysters annually from grounds which are capable of yielding five hundred million bushels each year. It has led to the ruin of some of our finest beds, and to the very great injury of all of them, while other States have greatly increased the value of their beds at the same time that they have enlarged and extended the fisheries instead of restricting them. It has given a precarious employment for a few months in each year to about fifty thousand oyster- men, while our grounds should give profitable employ- ment, the year round, to five hundred thousand. It has paid to the oystermen about two million dollars a year, although our grounds should pay their cultivators more than sixty million dollars a year. Our six hundred thousand acres of oyster-ground have paid to the State treasury about $50,000 a year, ‘which it has cost the State about $52,000 to collect; and it has paid about $10,000 a year to the School Fund, while our revenue would be more than $6,000,- ooo if it were no greater per acre than the revenue from the oyster-grounds of Rhode Island. | In other States, money invested in the oyster busi- ness has paid an annual interest of more than 200 per cent, while our oysters have never paid to either pack- ers or vessel-owners more than 100 per cent, and of late years they have paid nothing at all. The interests of our people demand a complete change in our oyster policy, as rapid and radical as it can be without inflicting avoidable injury or unneces- sary hardship upon any one who is now engaged in the business; for however advantageous to the public g* 210 THE OVSTER. in general a change may be, the hardship of a few should overbalance benefit to many, and we should hesitate to demand any great sweeping change if it is possible to devise any plan to open the way for im- proved methods without infringing the rights of those who are now engaged in the business. If proper measures had been taken years ago it might have been possible to have preserved our natural beds from complete destruction, without restricting the fishing, while a new system was being gradually introduced. We have delayed action too long, however, and the oyster business has been overtaken by disaster. There is no escape, under any system, from a few years of scarcity and depression, and all persons who are en- gaged in any branch of the business must suffer more or less. It is the duty of the people of the State to see to it that our resources are developed and made as profitable and productive as possible, but while it is quite true that our beds might easily be made to sup- port many more persons than have ever gained a living from them in the past, we are bound to see to it that the welfare of those persons who are now depen- dent upon them be not unnecessarily obstructed while we are preparing the way for a better system. The question of State revenue from the public beds is of general interest, but we must not attach undue importance to it. For several years past it has amounted to nothing, and under our present system it will never be worth considering. As this is the case, the question of revenue for the next few years should not enter into the discussion of our policy regarding the public beds. If any plan for restoring | THE OYSTER. 211 and protecting them without expense to the people of the State can be put into practice, that is all we should expect. We often hear that, as their value in the past has not been the result of human industry, the oyster- bottoms are a natural source of wealth which belongs to the people of the whole State. This is unquestionably true, but it may be well to inquire more minutely into the exact nature and significance of this ownership, for common rights bring with them common duties and obligations. Our first duty is to protect those citizens who are most immediately and directly dependent on the oys- ter, and, among them, those who fish the public beds to get oysters to serve as food for themselves and their families have the first claim. Of the 10,500,000 bushels of oysters which were gathered in 1880 in our waters, 8,670,000, or more than four-fifths of the whole, were consumed outside the State, and those who hold that the people of our tide- water counties, or the people of Maryland, have a natural right to this supply of food, may truthfully affirm that if the sale of four-fifths of our oysters to people outside our State were prohibited, there would, even now, be an abundance for our own people on our natural beds. Under any intelligent system of manage- ment our natural beds would supply all the oysters we need for food, and would still leave a great surplus for commercial purposes, and we do not need to kill the oyster business in order to get our own supply. It must therefore be clear to every one that our natural right to oysters for food does not justify us in 212 LELES OV SI Bie. destroying a business which gives profitable employ-- ment toa large class of citizens. All civilized com- munities recognize the advantage of selling their pro- ducts in the best market, and it is not necessary to state that the destruction of our commercial business in oysters would inflict great injury, not on a few — capitalists alone, but on thousands of fishermen, shuckers and canmakers, and our people certainly have as much natural right to make an honest living by selling oysters to outsiders as they have to use them as food for themselves and their families. If our right to oysters for our own food were the only one, the emergency could be met by legislation to prohibit dredging and wholesale fishing, and to drive the oyster business out of our State; but we can hardly conceive a greater misfortune to our people than this. Still, if it were the only way to protect our oysters, and to preserve for the people of our tide- water counties and for their children the supply of cheap food which nature has given them, I should be among the first to recommend this course. Fortunately this is not the only remedy, and it is possible to increase our supply so that the tide-water people shall have all they want without destroying the oyster business. Our next duty is to protect the interests of the citi- zens who support themselves by work upon the public beds—the tongmen and dredgers who fish for oysters in order to make their living by supplying the market. As their business is an honest and useful one, they have a natural right to pursue it, and it is the duty of our people to see that this right is preserved and pro- - THE OYSTER. 213 tected. It is equally clear, however, that they can claim no right to deprive the tide-water people of food ‘by plundering private supplies of oysters, or by de- stroying the natural beds. Every one knows that private planting grounds have been robbed without mercy by some of our fishermen, and.even the men who are most prejudiced by their own interests are no longer able to deny the well-known fact that our public beds have been brought to the verge of ruin by the men who fish them to supply the market. If fishing cannot be carried on upon the natural beds without this result, the interest of our whole people demands its prohibition. The citizens of Maryland do not desire to deprive any one of the right to earn his living, but our own interest requires that oystering upon the public beds shall be prohibited unless the oystermen can convince us that they can be intrusted with this right, without placing our common property or the property of any citizen in peril. The question which we should ask them, which they are bound in jus- tice to ask themselves, is whether they are able to give this assurance to the people of the State. They can- not satisfy the community by calling for more laws to keep them within bounds, or by asking for an armed police force to prevent them from destroying their own interests. They must satisfy the people that they themselves have enough public spirit to organize themselves for their own government and regulation, and that they have enough self-restraint and forethought and intelli- gent self-interest to provide for the protection and im- provement of the property which is intrusted to them. 214 THE OVS TER, - If they can give the community this assurance, all the people of the State will be on their side and will aid them by all means in their power. The question of immediate revenue to the State will not be considered for a moment, as compared with their prosperity. The tongmen and dredgers must acknowledge, how- ever, that as the home consumer of oysters has no right to oppose the commercial business, it is equally clear that the public fishermen have no right to oppose the development of our resources by private oyster culture, unless it destroys their own livelihood. So long as they draw on the natural supply without the devotion of any part of their labor or earnings to its increase by artificial means, they can claim no right to anything more than the natural beds; nor can they claim any right to gain a living from these beds at the expense of posterity, or by any means which tend to ruin the property. It is also clear that they have no rights which conflict with the wider right of our people to increase our prosperity by rearing oysters. In discussing the measures which should be adopted for the restoration and d.velopment of our oyster business, the interests of four classes should be kept in view: the tongmen who resort to the beds for food; the dredgers and tongmen who make a living by gathering oysters for sale from our natural beds; the persons who wish to engage in oyster culture, either by planting or by the various methods of oyster-farm- ing; and the dealers, packers, shuckers, canmakers and others who are supported by the oyster business. Fortunately we need not ask which of these inter- ests is to give way. Our waters are prolific enough THE OYSTER. 215 ‘ for all, and it is the right as well as the duty of our people to see to it that our natural inheritance in the bay be fully developed and used to the best advantage for the good of all. ; The protection of the people who now depend upon the natural beds for a living must always be kept in view, but our people should awaken to a sense that interest in the matter is not confined to the men who are engaged in the oyster business. To ourselves and to our posterity we owe it that our resources shall be fully developed, for our oyster- beds are our greatest source of wealth, and upon them, more than upon our commerce, our manufactures, or our farming land, the future wealth and prosperity and population of our State depend. Every one of us appreciates that it is for his interest to get his little private supply of oysters for home use as cheaply as possible, but scarcely any one, except the oysterman, realizes that this is the least of his in- terésts in the matter. If our population were increased fifty-fold, the oysters needed for home consumption would even then be only a small part of the supply which our waters can be made to furnish; and every one who is interested in Maryland, all business men who will be benefited by an increase in wealth and population, all farmers who pay taxes to the State, and all persons who own property here, should awaken to the fact that our greatest source of wealth is almost absolutely undeveloped. The wealth which is within the reach of our people and their descendants from the oyster-grounds of the State is great, almost beyond expression, and it is not 216 THE OVSTER. too much to affirm that the money value of the grounds under the water is equal to that of the dry land. I have attempted to form a rough approximation to the area which is at present occupied by oysters in Maryland, and while, in the absence of exact surveys, the result cannot be regarded as strictly accurate, the conclusions which are given in the following table are certainly not excessive. TABLE No. 4.—AREAS OF OysTER-BEDS APPROXIMATELY ASCERTAINED. 1883. Square Yards. Fishin? ‘Bay "BOOBs .- essa oe odie <0 acdp aeisaices s «snc eotiheslsuie ne cuise cos oican nebo 25,600,000 Wire OUI 55s teien too cis aashine ranselecere a sisva’e:nig kuata eos Rralalayeimlc.necoace tate etaiaye Meee Blea 1,800,000 rod ob Wig) chili old 240s nl Re emtae coud SOCORaCe aio SOLS 1 AIO SOUtonoe dae Nnosroncaboosesctocc 1,850,000 INANTICOKEVEOIDE ny simwinrame ies 21,400,000 Bodkin’ Creek: Oyster-BeOds circu quien « aie cis anjeoeielet ie acu ewienieetelsiae ese meee 5,000,000 Marothy River Oyster-Beds:.-c2.0.2sccces scsmal- ce doeens oneeeneten coe eenee nes ; Severn River Oyster-B Cd Sin icuies scm cocteicle ts =: clos cloimivinrsaetetetalet tele ics aie intel eerie 3,500,000 South River Oyster- Beds)... ecu tise niwtsiccstss oc welds loeee ce ceicmere ne Cee eeee 6,000.000 Eastern Bay and Creeks Oyster-Bedsic.cctcc oe sevens csc onde cae see ore eeee eee 19,400,000 Choptank River to Cambridge Oyster-Beds.... .....60.2c0s0scecseccsrecersscee 13,300,000 Little Ghoptank River! Oyster-Beds a1.c 2 sac owls nvteis c/n sine Seisinieciais nisl eineteiemsteetens 7,100,000 Patuxent River to Benedict Oyster-Beds ce ec eis cvn cise selec vvdelecincrecaciesntsiets 1 7;300,000 TOA cok 38. Seis oe eee 578,224,000 al i THE OYSTER. 217 Five hundred and seventy-eight million square yards are about one hundred and ninety-three square miles, or one hundred and twenty-three thousand five hun- dred and twenty acres. As Winslow found by actual survey that there are 103 square miles of natural oyster-beds in Tangier Sound alone in 1879, this estimate of 193 square miles for our whole territory is certainly not excessive, and it will be noticed that the Potomac River is not in- cluded in this estimate. Only a very small part of the bottom which is proper for oyster-farming is now occupied by natural beds, and it is safe to estimate the total area of valuable oyster-ground in our State at one thousand square miles, or six hundred and forty thousand acres. Much of this ground could be made to yield to its cultivators an annual profit of $1000 per acre, and the profit on the whole, under a thorough system of culti- vation, would not be less than $100 per acre. It is not too much to affirm that when the whole of this area shall have been developed, the future citizens of our State will be able to draw an annual income of over sixty million dollars from our waters. At present, however, their value is very much below this estima- tion, and under the present system of management it is rapidly disappearing altogether. The oyster crop has never been very much more than 10,000,000 bushels, and its value to the fisherman has never, in all probability, exceeded $2,000,000. It is not easy to ascertain its precise value with great accuracy, but $2,000,000 annually is a safe estimate, and the actual annual value of the oyster-beds, under a system which 10 218 THE OVSTER. is rapidly leading to their complete destruction, is thus seén to be less than three per cent of their pos- sible value. An abstract statement in figures is always open to distrust, and in order to guard against any impression that the value stated above for our oyster-grounds is imaginary, we wish to call attention here to results which have actually been realized. In 1888, Mr. Fred. A. Gunby, formerly a resident of Crisfield, Maryland, obtained from the State of Vir- ginia a right to cultivate oysters on about sixty-eight acres of bottom in Accomac County, Virginia. The tract lay in Tangier Sound, near the Maryland line, and opposite that part of Smith’s Island which is in Virginia, lying just south of Horse Hammock. He planted that year 28,000 bushels of oyster shells, at a cost of about $1200. Since that time he has been to expense in employing a watchman.to keep off in- truders, and this total outlay up to December, 1890, had been about $3000. In April, 1890, it was esti- mated that there were 30,000 bushels of oysters on his beds. The shells were found full of young oysters, which were growing rapidly. In December, 1890, it was calculated that there were 350,000 bushels of oys- ters on the ground, worth at least thirty or forty cents a bushel in the market. He was not permitted to gather the harvest which he had sown, but his experience shows the rich return which would be yielded by this sort of oyster-farming if private rights could be respected; and it rests with the people of Maryland to decide whether our re- sources shall be developed, and until we determine to” THE OYSTER. 219 ! avail ourselves of our natural advantages and to enjoy the rich harvest which lies within our reach, nothing can be accomplished. There is no fear that the market will ever be over- stocked with an article of food so cheap and dainty and nutritious as the oyster; and as improvements in the method of packing and transporting oysters are introduced, the demand for oysters to supply the rap- idly increasing population of our country will fully tax all the resources of our waters. This great business can be secured just as soon as we are prepared to demand opportunities to develop our resources. Since all efforts to engage in oyster culture in our State at present, even on the smallest scale, are frus- trated by the claim that they are growing upon natural beds, the first step in dealing with the matter must be an actual, careful survey of the waters of the State, for the purpose of designating, first, the natural beds, or those areas over which the oysters are now so abund- ant as to furnish steady production, and employment for the men engaged in gathering oysters for the mar- ket; and, secondly, those areas which are now under cultivation as planting grounds; and, thirdly, the area which now produces no oysters for the market, but where oyster culture can be carried on. After this is provided for, the next step is to decide what shall be done for the encouragement of each one of the chief subdivisions of the oyster industry. It will be most convenient to discuss, first, the measures which should be adopted to promote the in- terest of the tongmen and dredgers who now earn their living by fishing the public beds to supply the 220 THE OYSTER, market, for every one appreciates that the destruction of their means of employment would be a great mis- fortune to all the people of the State. After much thought upon the matter and careful examination of all the opinions which have been ex- pressed, I am able to perceive only one way to protect and develop this branch of the oyster industry, and I am sorry to say that I am not at all sure that even this plan is practicable. It is the co-operative organization of the oystermen themselves for the purpose of improving the public beds. If they were to form an association for this purpose, and were to organize it in such a way as to satisfy the people of the State that the desired end would be attained, they ought to be aided and encouraged to make the experiment. The people of the State should, however, require ample assurance that all industrious, law-abiding oys- termen who are citizens of Maryland shall have a chance to join the association and to share its advan- tages ; that the number of oysters taken from the pub- lic beds each year shall be restricted to the amount which they can yield without injury; that a proper proportion of the proceeds of the sale of these oysters shall be spent in the improvement of the beds; that the equitable distribution of the balance among the members of the association shall be provided for, and that all the influence of the association shall be exerted to enforce its rules and to secure respect for law and for private property. If the people of Maryland can have a reasonable THE OYSTER. 221 assurance that all these ends will be secured by the association, I believe that it will be wise for the State to give up for the present all hope of immediate rev- enue from the public beds, and to intrust them for a term of years to this association, for the use and profit of its members. If my opinions carry any weight, I wish to impress upon the people of the State the fact that the pros- perity of our citizens is very much more important than all the money which we have ever received from dredging and tonging licenses, and I also wish to con- vince the oystermen that they must depend “pon their own efforts rather than upon the State government. If I tell the oystermen that it is useless for them to look to the Legislature for the improvement and de- velopment of the public beds, I only tell them what they already know by long experience. It has been proved conclusively, over and over again, that our public domain cannot be protected without the aid of the oystermen; but ifthey would co-operate for the enlightened administration of their own busi- ness, they would need no new restrictive laws. They do not even need to send men to the Legislature to look after their interests, nor do they need to fee law- yers to make out a case for them. The enlightened sympathy of our people is worth more to them than any number of men in the General Assembly, or than all the advice of the best lawyers in the State. For support they must rely upon public sentiment, and for success they must trust to their own efforts. If our public beds are to be saved from ruin, it must be by the efforts of the oystermen themselves, by organiza- 222 THE \OVSTER. tion and co-operation for the purpose. I do not see any other way to bring it about, and I hope that the plan which I have proposed will be considered by the oystermen. While there are some reckless, short-sighted men in the business, most of the captains and vessel-owners are men who have the respect and confidence of their neighbors, and the intelligence and personal influence which are needed to direct and control public senti- ment. I ask them whether it is not worth while to consider whether a plan for the organization of a co-operative oyster company cannot be drawn upand put into good shape during the next year. If they can accomplish this, I am sure that they could present it to the next Legislature, with an endorsement by all the people of the State, so enthusiastic and unanimous that it would command the support of every one who is interested in their welfare, and that it would meet prompt recogni- tion by the Legislature, even if there were nota single member who depended on the votes of the oystermen. The complicated details of the organization; the qualifications for membership; the mode of enforcing the laws of the association ; the way in which rent for the use of vessels and apparatus is to be assessed and collected; the sums which are to be paid by the association for the experience and business standing of captains and other officers; the way in which fish- ing is to be kept within the capacity of the beds; the means to be adopted for restoring and improving the beds; the adjustment of the conflicting interests of different localities: all these and many other matters. THE OV ST ER. 223 of detail will require close attention, self-sacrifice and careful thought, but I do not believe that the difficul- ties will be found insuperable if an earnest effort is made to work out a plan of co-operative organization. Certainly the people of the State would rejoice to see such a plan developed and put into successful operation,and no obstacles would be thrown in the way of the oystermen by outsiders. The only difficulty is the one which comes from human nature. The native American is too ambitious, too fond of competition, and too desirous of full scope for his own individual energy and intelligence and business sharp- ness, to take kindly to a co-operative organization ; but the only way to afford a field for these selfish quali- ties is private oyster-culture, and if our natural beds are to be retained as public ground they must be man- aged on a co-operative system. No one can say whether such a system would suc- ceed or not, but it is well worth trying for a term of years. . If at the end of this period the result were satisfactory, all the people of the State would be proud of our oystermen, and it could then be renewed for another term, or forever, as seemed best. If the organization should break down or fail through internal dissension or personal ambition or conflict of interests, no great harm would be done, for the system of private culture could then be tried. Some of the oystermen will assert that they have no money to invest in the improvement of the beds, and that the State ought to help them out; that what little capital they had has been lost in the last few years, and that, in order to be successful, the fishery would 224 THE OYSTER. require so much restriction for the next two or three years that there would be no profits, and only a very scanty living. Unfortunately, this is true, but it will be true under any system, and at present things are growing worse with no prospect of improvement, while under intelligent co-operation they would im- prove rapidly after the first two years. The oyster- men complain that they have no capital to bridge over this gap, but they will have to get over it somehow, in any case. At present they cannot borrow, for they have no prospect of better times ahead. If, however, the community were convinced that the organization could be relied upon to develop and im- prove the property intrusted to it, there would be no difficulty in raising the necessary capital, and the amount which is now paid by the State for licenses would go a long way towards the improvement of the beds. The only plan for the management of the public oyster-grounds, except oyster culture by a co-opera- tive organization of oystermen, is cultivation by the State, and our past history shows conclusively that the State can do nothing unless it be supported by the intelligent co-operation of the oystermen. If they are able to co-operate effectively for the enforcement of the laws, they are able to co-operate for the improve- ment and protection of their own business; they can manage it for themselves very much better than the State can do, and they do not need State aid. Every oysterman will agree with me that if the money which is now paid for licenses is to be spent in the improvement of the public beds, the oystermen them- THE (OYSTER, 225 selves would be more able, under a co-operative sys- tem, than any salaried officers who might be appointed by the State, to use it to advantage. State protection has so far proved a total failure, and I do not see any way to save the public beds, as common fishing grounds, except the one which I have proposed. If this is not practicable, the sooner the natural beds are thrown open to private cultivators, the better it will be for all concerned. The artificial culture of salt-water food-fishes is proper work for the State, for these fishes are migra- tory: they cannot be confined or restricted to one spot, and there is no way to secure to individuals the enjoyment of the fruits of their own industry in this field of work. The case of the oyster is quite different. The animal is as fixed and sedentary as a potato, and its cultivation is as simple as any other branch of agri- culture. State aid is unnecessary, and experience has shown that it is totally inefficient, and our public beds must either be cultivated by the oystermen as an organ- ized body, for the good of all, or they must cease to be public ground, and must be cultivated by indi- viduals for their own profit. It now remains to consider the measures which should be adopted for the protection and development of the other branches of the oyster industry, but this is comparatively simple. First, as regards the tide-water consumers of oys- ters. So far as they are fishermen upon the public beds, they should become members of an oystermen’s association for the preservation, restoration and devel- opment of the public domain. 226 THE OYSTER. So far as they are planters upon private grounds, their greatest need is protection in their rights and encouragement to invest their time and money in the extension of the planting business. As soon as the first condition of success, respect for private property, has been secured, the planting industry will grow rapidly, and I have already devoted considerable space (pp. 125-140) to the discussion of improved methods. Success in planting requires security in the tenure of bottoms to be used for the purpose, and I believe that the following provisions for the growth of the industry should be made by the State: Any owner of land the lines of which extend under the navigable waters of the State, should have the ex- clusive right to use the bottom within the lines for oyster culture; the owners of any land bordering on any landlocked water should have the exclusive right to use it for oyster culture above the line where it first ceases to be one hundred yards wide at low water; any one who shall construct an artificial pond for the culture of oysters on any land of which he is the owner, shall own the pond and its contents; any owner of land in which there may be any landlocked water which might be converted into a pond for the cul- tivation of oysters without injury to navigation, should be permitted to construct dams or gates in order to convert it into an oyster-pond, and should have the ex- clusive right to cultivate oysters upon its bottom. In addition to these provisions, any riparian owner should be permitted to purchase from the State, at a nominal price, the right to cultivate oysters upon the bottoms THE OYSTER. 224 of his own water-front, to a specified distance—say one hundred yards—beyond low-water mark; and any citizen of Maryland should be permitted to pur- chase from the State, at a nominal price, the right to cultivate oysters upon an area not to exceed fifteen acres, on any bottom not already appropriated or set apart as public ground. In all these cases the right to cultivate oysters should be made as much like a title to real estate as possible, and the State treasury should look for its in- come from future taxation of the property rather than from the price of the franchise. After the planting in- dustry has become well established it will be able to bear its proper share of the burden of taxation, but an infant industry should not be hampered or taxed for the sake of public revenue. These provisions, if sustained by a sound and liberal public sentiment, would put it in the power of any citizen to engage in oyster-planting, and thus to pro- vide for the support of his family. The encouragement of oyster-farming upon the bottoms in the open waters of the bay now remains to be considered. After the natural beds have been surveyed and mapped and set apart as public grounds, provision should be made, ultimately, for the encouragement of private oyster culture upon all bottoms, outside those limits, not otherwise appropriated. As nearly all of this book has been devoted to the subject of oyster-farming, it is not necessary to add anything more to show its great importance. Its en- couragement is a matter of vital interest to every citi- 228 THE OYSTER. zen of Maryland, for, wisely fostered, it will be an ines- timable contribution to the prosperity of all our peo- ple; it will provide permanent, stable employment for our oystermen ; it will increase the packing business, it will benefit all oyster dealers, all shuckers and can- makers, all the business men of the community; it will provide cheap and abundant food for our people, and it will contribute to the revenues of the State; but from its very nature it cannot be successfully carried on upon a small scale, and steps must be taken to attract capitalists to this field of industry. Many thoughtful persons believe that all private ownership of land is objectionable and injurious to the best interests of society, and they are for this reason opposed to private oyster culture. I believe, however, that it will be found, on careful examination, that most of their arguments and objections to private owner- ship lose their weight when applied to oyster culture. Private lands above water are often used in such a way as to exclude other uses more beneficial to society ; but this cannot happen with oyster franchises, for the State has no power to grant any absolute title to the bottoms under navigable water, or to grant any right to use them for other purposes than those specified in the lease. It has power to convey to private citizens the right to cultivate and harvest oysters, but it can do no more, for all the citizens of Maryland have the com- mon right to catch fishes in our waters, and all citizens of the United States must always retain and enjoy the right of free access to all such lands for purposes of navigation. It is clear that a lease of the bottoms for oyster culture could not give any exclusive personal THE OYSTER. 229 right to use them for other purposes, nor could it deprive our citizens of their common right to use our waters for other purposes. It is also urged that the private ownership of land is unjust, inasmuch as it enables individuals to appro- priate to themselves the unearned increase of value; but as the whole bay is a natural highway, where no public improvements will ever be needed, as no towns will ever grow up on the water, and as transportation by water is so cheap that the distance of the market counts for nothing, and-as the bottoms can never be used for any other purpose than oyster culture, the only way in which the value of the oyster bottoms can increase is by the extension of the market, and if this is brought about by the energy of the oyster farmers it will not be just to assert that they have not earned it. The value of our bottoms, for rearing oysters, is as great now as it will ever be, and while the selling price of land will rise as the industry ex- tends, the increased price will not be due to increased value, but to more general recognition of its value. Interest in the subject will awaken and spread, after the success of the first experiments, and as appre- ciation of the value of the ground becomes more general, and the demand increases, the price must rise, although the actual value of the land for the pro- duction of food will not be any greater than it is now. The only danger to be guarded against is that some of the land may fall into the hands of speculators, who, instead of cultivating it and adding to our resources, will keep it idle and unproductive until they can sell their unimproved rights at a profit, on account of the increased price of neighboring improved lands. 230 THE OYSTER. This difficulty seems very formidable on paper, but it can never exist on any extensive scale, for it would in that case defeat its own end, and it is clear that it is from its own nature transitory, and that it will disap- pear as soon as oyster culture becomes general and all the land comes into profitable use. I believe that ultimately it will be found to be the wisest policy for the State to make the franchises for oyster culture perpetual, but since most of the advan- tages of private enterprise can be secured by leases for a term of years, it may perhaps be wise to try this plan for one or two terms, and to leave the question of absolute sale for future consideration. Oarded rT be