The broadening of the photospheric lines in ζ Ophiuchu by very rapid rotation allows not ony mapping of its surface velocities and temperature distribution, but makes the star an excellent probe for a profusion of sharp interstellar lines. Being bright, it is a good object for smaller telescopes. Apart from discovering nonradial oscillations in its atmosphere over twenty years ago and a significant temperature differential between pole and equator (the von Zeipel effect), I have recently assisted in the discovery of some 30 lines of interstellar C3 near 405 nm - the first carbon chain to have been found in a diffuse interstellar cloud and at a much higher concentration than expected.
In the Prague Dependency Treebank, a part of the texts from the Czech National Corpus is being annotated on several layers, including the underlying (tectogrammatical) representations. The usefulness of such a treebank is briefly characterized and a large set of topics is discussed for which further monographical research appears to be necessary. The future discussion and elaboration of these topics can be carried out much more effectively with the use of the annotated corpus, and the results thus gained may then serve to an enrichment of the descriptive framework and of the annotation procedure.
Individual values of syntactic and morphological attributes used in the syntactic annotation of the Prague Dependency Treebank are discussed, as well as certain more general issues concerning the relationships between the underlying and the morphemic levels (word order, deletion and others).
The structuralistic point of view seems to be applicable in the sociolinguistics as far as the relation of language norms and varieties is concerned. Language norms can be classifiable as components of human consciousness, the function of which is to regulate language expectations and actions. These norms reflect social and language phenomena. Varieties are coherent collections of language elements which can be distributed according to geographic, social or functional criteria. The relation between norms and varieties is that between invariant and variant elements. These units facilitate to operationalize the sociolin-guistic perception of language-users. Invariant constructs with their sociolinguistic relevance (segments of norms) are realizable in various ways, which depends on various factors determining communicative situations. The author suggests to coin the term normeme for the realizable unit and allonorme for the realized variants (segments of varieties).