[Whereabouts of surplus and surviving laboratory animals].

Most research and breeding institutions have to deal with the problem of post-experimental or surplus laboratory animals. The German law on Animal Welfare (Tierschutzgesetz) forbids to kill animals without proper reason. This prohibition is valid for laboratory animals, too.

Subtyping of reading disorders: Implications for remediation.

Present research methods do not seem to be leading us toward general agreement regarding reading disability subtypes. Even if there were agreement, conventional group research designs are not adequate for determining the optimal remedial procedure for each subtype. It is recommended that careful thought be given to the formulation of more appropriate theoretical frameworks and behavioral measures, and that single-subject research designs which yield information about subtypes and remediation effects be designed through collaboration of researchers and practitioners.

Judgments of vocal affect by language-delayed children.

Judgment of vocal affect was studied in 19 language-delayed children and 19 children with normal language. The children responded to utterances spoken in an angry, happy, or sad tone of voice by pointing to a picture of an angry, a happy, or a sad face. The language-delayed children made significantly fewer correct judgments.

Classification of reading problems by the Q-technique of factor analysis.

The Q-technique of factor analysis was used to define subtypes of reading problems in terms of performance on 31 tests of rapid reading skills. Subjects included a group of 34 children with learning problems, language problems, and mental retardation. Three subgroups were identified within each group by the statistical classification procedure.

Hydrogeologic Constraints on Yucatan's Development.

The Republic of Mexico has an ambitious and effective national water program. The Secretaria de Recursos Hidraulicos (SRH), whose director has cabinet rank in the federal government, is one of the most professionally distinguished government agencies of its kind in the Americas. Resources for the Future, Inc.

Voice recognition by matching to sample.

Voice recognition was assessed by a matching to sample procedure in 30 right-handed adults with normal hearing. The subject was required to indicate which of three voices speaking a nonsense syllable matched the speaker of a sample vowel. Subjects were able to recognize voices with reasonable accuracy, but there were no significant differences as a function of ears or practice, and performance was not markedly affected by knowledge of results or mode of response.

Cave Development during a Catastrophic Storm in the Great Valley of Virginia.

Observations made before aind after a catastrophic storml support the conclutsion that caves receivinig storm recharge may be significantly developed in the vadose zone by the processes of niass transfer. These processes are greatly accelerated during times of major floods. Evidence indicates that in ancient times floods of similar magnitude have occurred.