Volume 111 (2) February 19911 1

Third American Editor-

INFORMATION ABOUT THE JOURNALDEVELOPMENT (ISSN 0950-1991) is a continuation of Journal of Embryology and Experimental Morphology (ISSN 0022-0752).

DevelopmentThe aim of Development is to act as aforum for all research that offers agenuine insight into mechanisms ofdevelopment. Manuscripts will beconsidered primarily with respect to thisaim.

Studies on both plant and animaldevelopment are welcome and can befocused upon any aspect of thedevelopmental process, at all levels ofbiological organization from themolecular and cellular to the tissuelevels.

What Development offers(i) Wide international circulation(ii) Fast publication - average 13 weeksfrom acceptance(iii) Fast editorial processing(iv) No page charges(v) 200 free reprints(vi) Free colour reproduction (at theeditor's discretion).

Rapid publicationDevelopment now offers rapidpublication (average 9 weeks fromacceptance): the following criteriaapply:(i) the revised manuscript isaccompanied by a corresponding word-processor disk(ii) no colour plates(iii) author does not require to seeproofs(iv) 200 free reprints only(v) manuscript conforms to journalstyle i.e. no subediting necessary - seeInformation for contributors,(vi) Figures are labelled in journalstyle.

Subscription ratesUSA, Canada and Mexico: InstitutionalUS$885; Individual US$105.Rest of the World: Institutional £510;Individual £75.(All prices include post and packaging).

Number of issuesDevelopment in 1991 will have 12normal issues and 2 caseboundsupplements. The 12 normal issues willbe in the form of 3 volumes (111, 112,113) each of 4 parts. In 1991 theSupplements will be 'Molecular andCellular Basis of Pattern Formation"and 'Developmental Neurobiology'.

OrdersOrders for 1991, which can be in £Sterling/Dollars or using Access/Visacredit cards, should be sent to PortlandPress Ltd, PO Box 32, Commerce Way,Colchester CO2 8HP, UK[telephone Colchester (0206) 46351;24-hour ordering by Fax (0206) 549331- USA 44 206 549331] or to yournormal agent or bookseller.Orders must be accompanied bypayment.

DeliveryCopies of the journal for subscribers inthe USA and Canada are sent by air toNew Jersey for delivery with theminimum delay (second class postagepaid at Rahway, NJ and at additionalmailing offices).

Postmaster (USA mailing only)Send address corrections toDevelopment, c/o Mercury AirfreightInternational Inc., 2323 RandolphAvenue, Avenel, New Jersey 07001,USA (US Mailing Agent).

ReagentsPublication of a paper in this journalimplies that authors will make availablespecialized reagents (for exampleantibodies, DNA probes) to otherscientists in the field who require themfor bona fide purposes.

For detailed instructions to authors,please see back cover.

Back volumesPlease contact Portland Press Ltd forprices.

Copyright and reproduction(i) Authors may make copies oftheir own papers in this journalwithout seeking permission fromThe Company of Biologists Limited,provided that such copies are for freedistribution only: they must not besold.

(ii) Authors may re-use their ownillustrations in other publicationsappearing under their own namewithout seeking permission.

(iii) Specific permission will not berequired for photocopying copyrightmaterial in the followingcircumstances.

(a) For private study, provided thecopying is done by the personrequiring its use, or by an employeeof the institution to which he/shebelongs, without charge beyond theactual cost of copying.(b) For the production of multiplecopies of such material, to be usedfor bona fide educational purposes,provided this is done by a member ofthe staff of the university, school orother comparable institution, fordistribution without profit to studentmembers of that institution, providedthe copy is made from the originaljournal.

(iv) For all other matters relating tothe reproduction of copyrightmaterial written application must bemade to

Dr R. J. Skaer,Company Secretary,The Company of Biologists Limited,Department of Zoology,Downing Street,Cambridge CB2 3EJ,UK.

Cover photograph

Double immunolocalization of giant (red) with hunchback (green) during Drosophila development;overlap appears yellow. For further details, see article by R. Kraut and M. Levine in this issue,Development 111, 601-609.

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Personal Subscription Coupon ... Reductions for Individuals

YES, I wish to subscribe for 1991 as indicated:

DEVELOPMENT• Please send me a 1991 subscript ion (14 issues)

(January to December) to DEVELOPMENT, at the

special individual rate of only $105.00 ( U S &

Canada) £75.00 (rest of wor ld)

n b Journals are sent usually by air or ASP to subscribers

worldwide

JOURNAL OF CELL SCIENCEL J Please send me a 1991 subscription (14 issues)

(January to December) to JOURNAL OF CELLSCIENCE, at the special individual rate of only$100.00 (U S & Canada) £75.00 (rest of world)

n b Journals are sent usually by air or ASP to subscribers

worldwide

Prices include charges for postage and handling.

• American Express • MasterCard

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491990

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UK

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