1. Mirror-image configuration of the cortical pattern causes modifications in propagation of microtubular structures in the hypotrich ciliateParaurostyla weissei

   • Maria Jerka-Dziadosz

   OriginalPaper Pages: 311 - 324

2. Temporal programming of epidermal cell protein synthesis during the larval-pupal transformation ofManduca sexta

   • Mary L. Kiely
   • Lynn M. Riddiford

   OriginalPaper Pages: 325 - 335

3. Temporal patterns of protein synthesis inManduca epidermis during the change to pupal commitment in vitro: their modulation by 20-hydroxyecdysone and juvenile hormone

   • Mary L. Kiely
   • Lynn M. Riddiford

   OriginalPaper Pages: 336 - 343

4. Demonstration of neural induction using nuclear markers inXenopus

   • Gregg Recanzone
   • William A. Harris

   OriginalPaper Pages: 344 - 354

5. Stage-dependent effects of retinoic acid on regenerating urodele limbs

   • Iqbal A. Niazi
   • Maurice J. Pescitelli
   • David L. Stocum

   OriginalPaper Pages: 355 - 363

6. Proximal and distal transformation during intercalary regeneration in the planarianDugesia(S)mediterranea

   • Emili Saló
   • Jaume Baguñà

   Rapid Communications Pages: 364 - 368

7. Ultrastructural evidence for the presence of actin filaments in mouse eggs at fertilization

   • Jolanta Karasiewicz
   • Maria Salomea Soltyńska

   Rapid Communications Pages: 369 - 372

8. Development of thoracic curvature inDrosophila melanogaster

   • Walter J. Costello
   • Robert J. Wyman

   Rapid Communications Pages: 373 - 376

9. Announcement

   Announcement Pages: i - i