Self-division of cells; see Duplicative Sub- Serous membranes, structure of, 604. Shadbolt, Mr., on Arachnoidiscus, 290. Shark, teeth of, 588, 589; scales, &c., of, Shell, of Crustacea, 550, 551; of Echinida, Roots, structure of, 386; mode of making Simple Microscope, principle of, 77-81; sections of, 386-388. Rosalina, 439. Ross, Mr., on adjustment of object-glass, 76, 77. his Compound Microscope, 108- Rotation of fluid in Chara, 324; in cells of Sable, hair of, 595. Saliva, 684. Sarcode, 405-409. Sarcolemma, 655, Saw-flies, ovipositor of, 578. Scalariform duc's of Ferns, 352, 353, 374. Scales, of cuticle of Plants, 390. of Fish, 591-593. various forms of, 90-96. Skin, structure of, 604, 605; papillæ of, 605- Sphacelaria, 328. of Insects, 556-561; their use as Sphagnum, peculiar cells of, 348, 349; oc- test-objects, 194./ of Reptiles and Mammals, 594. Seeds, microscopic characters of, 401-403. currence of Rotifer in leaf-cells of, 426. 338. Sphæroplea, sexual reproduction of, 318. Spherical Aberration, 70; means of re- Spiders, eyes of, 582; respiratory organs of, Spinal Cord, mode of preparing sections of, Spines of Echinus, &c., 479, 480; mode of SPONGES, their structure, 452, 453; ciliary of Sporangia, of Desmidiacea, 274, 275; Squirrel, hair of, 594, 595. Stage, lever, 128, 129; magnetic, 130. Star-Anise, cells of seed-coat of, 367, 368. 420. Stellate cells of Rush, 362; of water-lily, 362 Stemmata of Insects, 563. Mode of making sections of, 386- Stentor, 423. Stephanoceros, Eichornii, 433. Thymus and thyroid gland, 664. 723 Tinea favosa, fungous vegetation of, 340. Tissues, Elementary, of Plants, 360; cel- Tongues of Gasteropods, 517-520; of In- Trachea of Insects, 570-572; mode of pre- Triceratium, 292; markings on, 281. 1 rout, circulation in young, 619. Stomata of Marchantia, 345, 346; of Flow- Tubularida, 462, 463, 465. ering Plants, 391, 392. Suminski, Count, on development of Ferns, Surirella, 293; conjugation in, 284. Tadpole, pigment-cells of, 604, 605; mode Tania, 529, 530. Tardigrada, 435; desiccation of, 432. Terebratula, structure of shell of, 513-515. Test-Liquids, 212, 213. Test-Objects, 192-199. Tetraspores of Florideæ, 331, 332. Thalassicolla, 445. Thaumantias, 467. Tubules, nervous, 614, 615. TUNICATA, Compound. general organiza- Ulvacea, 309-311. Unionida, shells of, 508-512. Urns of Mosses, 350, 351. Vacuoles, microscopic appearances of, 185. Vaucher, his researches on Confervæ, 38. Theca of Fungi, 334, 335; of Ferns, 352, Vegetable Ivory, 368. Vegetable Cell, nature of, 248, 249. Thin Glass, 214-216. Thompson, Mr. J. V., on Polyzoa, 492; on Thread-cells of Zoophytes, 474-476. VERTEBRATA, elementary structure of, 585- Vesicles of Nervous tissue, 614, 615. Thread, glutinous. of spider's web, 582, 583. Vine disease, 342. Volvox, structure of, 259, 260; develop- Vomited matters, 698. Vomit, black, 698. Von Baer's law of development, 52. Warington's Universal Microscope, 105- 108. Water-vascular system, of Rotifera, 429, his observations on rotation, Whalebone, structure of, 598. Williamson, Prof., on Volvox, 261-265. Winter-eggs of Rotifera, 431; of Hydra, Wood, of Exogenous stems, 378-381. Xanthidia of Flints, 633. Yeast, a vegetable substance, 45; produc- Yellow fibrous tissue, 603, 604. Zoophyte-Trough, 149, 150. Zoospores, formation of, by Ulvaceæ, 310, 331. THE END. BLANCHARD & LEA'S MEDICAL AND SURGICAL PUBLICATIONS. TO THE MEDICAL PROFESSION. In the present catalogue we have affixed prices to our publications, in obedience to the repeated requests of numerous members of the profession. While books, like all other articles, must necessarily vary somewhat in cost throughout the extended territories of this country, yet our publications will generally be furnished at these rates by booksellers throughout the Union, who can readily and speedily procure any which they may not have on hand. To accommodate those physicians who have not convenient access to bookstores, or who cannot order through merchants visiting the larger cities, we will forward our works by mail, free of postage, on receipt of the printed prices in current funds or postage stamps. As our business is wholesale, and we open accounts with booksellers only, the amount must in every case, without exception, accompany the order, and we can assume no risks of the mail, either on the money or the books; and as we only sell our own publications, we can supply no others. Physicians will, therefore, see the convenience and advantage of making their purchases, whenever practicable, from the nearest bookseller. We can only add that no exertions are spared to merit a continuance of the gratifying confidence hitherto manifested by the profession in all works bearing our imprint. PHILADELPHIA, October, 1856. * BLANCHARD & LEA. **A copy of our Illustrated Catalogue, 64 pages, octavo, will be sent free to any address on receipt of six cents in postage stamps. Catalogues of our numerous publications in miscellaneous and educational literature forwarded on application. TWO MEDICAL PERIODICALS, FREE OF POSTAGE, FOR FIVE DOLLARS PER ANNUM. THE AMERICAN JOURNAL OF THE MEDICAL SCIENCES, subject to postage, when not paid for in advance, THE MEDICAL NEWS AND LIBRARY, invariably in advance, or, BOTH PERIODICALS furnished, free of postAGE, for Five Dollars remitted in advance. $5.00 1 00 THE AMERICAN JOURNAL OF THE MEDICAL SCIENCES, EDITED BY ISAAC HAYS, M. D., is published Quarterly, on the first of January, April, July, and October. Each number contains at least two hundred and eighty large octavo pages, handsomely and appropriately illustrated, wherever necessary. It has now been issued regularly for more than THIRTY-FIVE years, and it has been under the control of the present editor for more than a quarter of a century. Throughout this long period, it has maintained its position in the highest rank of medical periodicals both at home and abroad, and has received the cordial support of the entire profession in this country. Its list of Collaborators will be found to contain a large number of the most distinguished names of the profession in every section of the United States, rendering the department devoted to ORIGINAL COMMUNICATIONS full of varied and important matter, of great interest to all practitioners. As the aim of the Journal, however, is to combine the advantages presented by all the different varieties of periodicals, in its REVIEW DEPARTMENT will be found extended and impartial reviews of all important new works, presenting subjects of novelty and interest, together with very numerous BIBLIOGRAPHICAL NOTICES, including nearly all the medical publications of the day, both in this country and Great Britain, with a choice selection of the more important continental works. This is followed by the BLANCHARD & LEA'S MEDICAL QUARTERLY SUMMARY, being a very full and complete abstract, methodically arranged, of the IMPROVEMENTS AND DISCOVERIES IN THE MEDICAL SCIENCES. This department of the Journal, so important to the practising physician, is the object of especial care on the part of the editor. It is classified and arranged under different heads, thus facilitating the researches of the reader in pursuit of particular subjects, and will be found to present a very full and accurate digest of all observations, discoveries, and inventions recorded in every branch of medical science. The very extensive arrangements of the publishers are such as to afford to the editor complete materials for this purpose, as he not only regularly receives ALL THE AMERICAN MEDICAL AND SCIENTIFIC PERIODICALS, but also twenty or thirty of the more important Journals issued in Great Britain and on the Continent, thus enabling him to present in a convenient compass a thorough and complete abstract of everything interesting or important to the physician occurring in any part of the civilized world. An evidence of the success which has attended these efforts may be found in the constant and steady increase in the subscription list, which renders it advisable for gentlemen desiring the Journal, to make known their wishes at an early day, in order to secure a year's set with certainty, the publishers having frequently been unable to supply copies when ordered late in the year. To their old subscribers, many of whom have been on their list for twenty or thirty years, the publish ers feel that no promises are necessary; but those who may desire for the first time to subscribe, can rest assured that no exertion will be spared to maintain the Journal in the high position which it has occupied for so long a period. By reference to the terms it will be seen that, in addition to this large amount of valuable and practical information on every branch of medical science, the subscriber, by paying in advance, becomes entitled, without further charge, to THE MEDICAL NEWS AND LIBRARY, a monthly periodical of thirty-two large octavo pages. Its "NEWS DEPARTMENT" presents the current information of the day, while the "LIBRARY DEPARTMENT" is devoted to presenting standard works on various branches of medicine. Within a few years, subscribers have thus received, without expense, the following works which have passed through its columns: WATSON'S LECTURES ON THE PRACTICE OF PHYSIC. BRODIE'S CLINICAL LECTURES ON SURGERY. TODD AND BOWMAN'S PHYSIOLOGICAL ANATOMY AND PHYSIOLOGY OF MAN. 724 pages, with numerous weed-cuts, being all that has yet appeared in England. WEST'S LECTURES ON THE DISEASES OF INFANCY AND CHILDHOOD. MALGAIGNE'S OPERATIVE SURGERY, with wood-cuts. SIMON'S LECTURES ON GENERAL PATHOLOGY. BENNETT ON PULMONARY TUBERCULOSIS, with wood-cuts, WEST ON ULCERATION OF THE OS UTERI, and BROWN ON THE SURGICAL DISEASES OF FEMALES, with wood-cuts. While in the number for July, 1856, is commenced a new and highly important work, The very favorable reception accorded by the profession to the valuable "LECTURES ON THE DISEASES OF CHILDREN," by the same author, which likewise appeared in this periodical, has induced the publishers to secure the present work for their subscribers, from advance sheets, supplied by the author. The very high reputation of Dr. West, and the unusual clinical advantages which he has enjoyed, sufficiently indicate the practical value of a systematic work from his pen on so important a subject. The publishers, therefore, trust that its appearance in the "NEWS" will afford entire satisfaction to their numerous subscribers, who will thus receive it free of all expense. For a more extended advertisement, see p. 32. It will thus be seen that for the small sum of FIVE DOLLARS, paid in advance, the subscriber will obtain a Quarterly and a Monthly periodical, EMBRACING ABOUT FIFTEEN HUNDRED LARGE OCTAVO PAGES. mailed to any part of the United States, free of postage. These very favorable terms are now presented by the publishers with the view of removing all difficulties and objections to a full and extended circulation of the Medical Journal to the office of every member of the profession throughout the United States. The rapid extension of mail facilities will now place the numbers before subscribers with a certainty and dispatch not heretofore attainable; while by the system now proposed, every subscriber throughout the Union is placed upon an equal footing, at the very reasonable price of Five Dollars for two periodicals, without further expense. Those subscribers who do not pay in advance will bear in mind that their subscription of Five Dollars will entitle them to the Journal only, without the News, and that they will be at the expense of their own postage on the receipt of each number. The advantage of a remittance when order. ing the Journal will thus be apparent. As the Medical News and Library is in no case sent without advance payment, its subscribers will always receive it free of postage. Remittances of subscriptions can be mailed at our risk, when a certificate is taken from the Postmaster that the money is duly inclosed and forwarded. Address BLANCHARD & LEA, PHILADELPHIA. |