an offer to subscribers

1
EDITORIALS 939 famous leaders in ophthalmology who live in Denmark, Norway, Sweden and Finland. It was a happy thought to bring to these the best products of their thought in the widely known scientific languages, English, French and German, each writer choosing ac- cording to his preference or proficiency the language in which he will set forth his thought. The publication of Acta Ophthalmologica will bring to the no- tice of ophthalmologists thruout the world how much of the best literature relating to our specialty comes from these countries. Certain nations have levied a sort of voluntary tribute on others by the process of publishing their scientific discoveries and inven- tions, and much of this tribute has been paid by the Scandinavians. By this bold expedient of adopting the more widely spoken languages, a Scandina- vian journal will secure for these na- tions the recognition of their scientific contributions to the world literature. The place attained in the world liter- ature of ophthalmology by this Journal in the last six years is very gratifying. Each year a relatively large proportion of its new subscribers has been drawn from other countries; and there has been a similar growth in the number and importance of the scientific papers from other parts of the world that have sought it as a medium of publica- tion. A glance over this volume shows twelve communications from writers of other countries; and there are now on hand for publication in the new year valuable papers from writers living in Asia, Africa and Europe, as well as in America. In every direction the movement for a world literature of ophthalmology goes steadily forward. E. J. AN OFFER TO SUBSCRIBERS. In the United States there are at least twice as many graduates in medi- cine who practice ophthalmology as an important part of their work, as there are subscribers for the AMERICAN JOUR- NAL OF OPHTHALMOLOGY. Those who do read the JOURNAL know that the others ought to have it. They can help their colleagues and help themselves by bringing this fact to the attention of those who are not taking the JOUR- NAL. To impress this point we offer to send two copies of this journal for the next year and two copies of the Oph- thalmic Year Book for 1924, one each, to an old subscriber, and one to a phy- sician practicing ophthalmology, whose name is not now on our subscription list, for the price of ten dollars each, twenty dollars, sent with the subscrip- tion before December 31. If the sub- scription is received before December 1, the new subscriber will also receive the December number free. BOOK NOTICES. Xerophthalmia in Denmark, 1909-1920, with an English Summary. By Olaf Blegvad, M.D., Assistant in Ophthalmology at the Hospital, Copenhagen. Paper, 170 pages, 18 ill. Oyldendalske Bookhandel. Cop- enhagen. Xerophthalmia and keratomalacia are rarely seen in America; a few cases are found in the larger cities. Denmark is particularly well situated for statis- tical studies regarding these diseases. Not only is its restricted area so situ- ated that practically all cases come un- der the observation of well trained oculists, but the sharply marked seas- ons and the definite food variations of animals and human beings make it pos- sible to draw conclusions of positive value with regard to the share that diet has in its etiology. To such a country the rest of the world must look for light on its pathology and treatment. The opportunities thus afforded have been appreciated and utilized by Bleg- vad, who brings together in this mono- graph a good resume of the literature referring to these diseases, the ac- counts of recent investigations of vita- mins, particularly the fat soluble vita- min A, and careful study of the cases of keratomalacia and conjunctival xero- sis occurring during the period named. These latter number, keratomalacia in children 434 cases, and in adults 19. Of xerosis of the conjjunctiva there were 148 cases. Blegvad finds the evi-

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EDITORIALS 939

famous leaders in ophthalmology who live in Denmark, Norway, Sweden and Finland. It was a happy thought to bring to these the best products of their thought in the widely known scientific languages, English, French and German, each writer choosing ac­cording to his preference or proficiency the language in which he will set forth his thought. The publication of Acta Ophthalmologica will bring to the no­tice of ophthalmologists thruout the world how much of the best literature relating to our specialty comes from these countries. Certain nations have levied a sort of voluntary tribute on others by the process of publishing their scientific discoveries and inven­tions, and much of this tribute has been paid by the Scandinavians. By this bold expedient of adopting the more widely spoken languages, a Scandina­vian journal will secure for these na­tions the recognition of their scientific contributions to the world literature.

The place attained in the world liter­ature of ophthalmology by this Journal in the last six years is very gratifying. Each year a relatively large proportion of its new subscribers has been drawn from other countries; and there has been a similar growth in the number and importance of the scientific papers from other parts of the world that have sought it as a medium of publica­tion. A glance over this volume shows twelve communications from writers of other countries; and there are now on hand for publication in the new year valuable papers from writers living in Asia, Africa and Europe, as well as in America. In every direction the movement for a world literature of ophthalmology goes steadily forward.

E. J.

AN OFFER TO SUBSCRIBERS. In the United States there are at

least twice as many graduates in medi­cine who practice ophthalmology as an important part of their work, as there are subscribers for the AMERICAN JOUR­NAL OF OPHTHALMOLOGY. Those who do read the JOURNAL know that the others ought to have it. They can help

their colleagues and help themselves by bringing this fact to the attention of those who are not taking the JOUR­NAL.

To impress this point we offer to send two copies of this journal for the next year and two copies of the Oph­thalmic Year Book for 1924, one each, to an old subscriber, and one to a phy­sician practicing ophthalmology, whose name is not now on our subscription list, for the price of ten dollars each, twenty dollars, sent with the subscrip­tion before December 31. If the sub­scription is received before December 1, the new subscriber will also receive the December number free.

BOOK NOTICES. Xerophthalmia in Denmark, 1909-1920,

with an English Summary. By Olaf Blegvad, M.D., Assistant in Ophthalmology at the Hospital, Copenhagen. Paper, 170 pages, 18 ill. Oyldendalske Bookhandel. Cop­enhagen.

Xerophthalmia and keratomalacia are rarely seen in America; a few cases are found in the larger cities. Denmark is particularly well situated for statis­tical studies regarding these diseases. Not only is its restricted area so situ­ated that practically all cases come un­der the observation of well trained oculists, but the sharply marked seas­ons and the definite food variations of animals and human beings make it pos­sible to draw conclusions of positive value with regard to the share that diet has in its etiology. To such a country the rest of the world must look for light on its pathology and treatment.

The opportunities thus afforded have been appreciated and utilized by Bleg­vad, who brings together in this mono­graph a good resume of the literature referring to these diseases, the ac­counts of recent investigations of vita­mins, particularly the fat soluble vita­min A, and careful study of the cases of keratomalacia and conjunctival xero-sis occurring during the period named. These latter number, keratomalacia in children 434 cases, and in adults 19. Of xerosis of the conjjunctiva there were 148 cases. Blegvad finds the evi-