VI CONTENTS. 



ON THE NUCLEI, FORMATION, AND GROWTH OE 

 VEGETABLE CELLS. BY PROF. C. NAGELI. 



PART II. 



PAGE 



IV. Free Cell-formation .... .95 



a. Without Visible Nucleus . . . . ib. 



b. With a parietal Nucleus .... 103 



c. Of free Cell-formation as a general Law . .111 

 V. On Cell-formation in general . . . .123 



VI. On the Growth of Cells . . .143 



ON THE UTRICULAR STRUCTURES IN THE CONTENTS 

 OF CELLS. BY PROP. C. NAGELI. 



Introductory . . . . . . .161 



1. Nuclear Utricles, Nuclei . . . . .165 



2. Spermatic Utricles . . . . .171 



3. Nucleoli . . . . . . . ]72 



4. Mucilage- (Protoplasm-) utricles . . . .173 



5. Proliferous Utricles . . . .175 



6. Colour-utricles . . . . . .176 



7. Starch-utricles, Starch-granules . . . .183 



8. General Retrospect . . . . .188 



REPORT ON PHYSIOLOGICAL BOTANY FOR 1844 AND 1845. 

 BY PROP. LINK. 



General Observations ..... 193 



I. Internal Structure of Plants .... 221 



II. Stem and Root . . . . . .249 



III. Root, Tubers, Prickles, Tendrils, Glands, Stomata . . 264 



IV. Leaves . . . . . . . 270 



V. Flowers, Fructification . . . . .282 



VI. Fruit, Seeds, Germination ..... 29O 

 VII. Individual Orders and Genera of the Phanerogamia in Refer- 

 ence to Physiology . . . . .296 

 VIII. Ferns, Mosses, Lichens, Algae, Fungi . . . 304 

 IX. Monstrosities ... 312 



