摘要:

SYNOPSIS1. Out of a total of twenty Albino rats one male and one female developed rhabdomyosarcoma during treatment with 5‐β‐naphthyl‐2: 4: 6‐triaminoazopyrimidine.2. The primary striated muscle tumour which arose in either the spermatic cord or the epididymis of the male rodent formed metastases in most organs of the body. Dissemination appears to have taken place via the lymphatic pathway.3. The histology of these tumours has been described in detail and problems relating to the ætiology and behaviour of these rare growths have been

ISSN:0368-3974    

DOI:10.1111/j.1365-2818.1954.tb02005.x

出版商:Blackwell Publishing Ltd    

年代:1954

数据来源: WILEY

摘要:

SYNOPSISA brief survey of the characteristics of reflecting microscopes is given, with particular reference to the Burch microscope. Accessory optical equipment for photomicrography with this microscope in the visible and ultra‐violet is described, and the adjustment of the objective and condenser mirror pairs is discussed. Some typical photomicrographs are show

ISSN:0368-3974    

DOI:10.1111/j.1365-2818.1954.tb02006.x

出版商:Blackwell Publishing Ltd    

年代:1954

数据来源: WILEY

ISSN:0368-3974    

DOI:10.1111/j.1365-2818.1954.tb02007.x

出版商:Blackwell Publishing Ltd    

年代:1954

数据来源: WILEY

摘要:

SYNOPSISAn instrument is described in which the back focal plane of the objective is re‐imaged into a more accessible position by the aid of a concave mirror without the introduction of any additional air‐glass interfaces. As a result, interchange of phase plates is greatly facilitated and amplitude and phase variation can be achieved efficiently at all pow

ISSN:0368-3974    

DOI:10.1111/j.1365-2818.1954.tb02008.x

出版商:Blackwell Publishing Ltd    

年代:1954

数据来源: WILEY

摘要:

SYNOPSISA theoretical analysis is made of determinations of the thickness of specimens in the microscope, based on Abbe and Berek's formulae. The accuracy of focusing has been stated to amount to one‐fifth of the vertical resolving power. Making full use of the optical system in a Leitz Ortholux microscope, it is calculated to be<± 0.1μ.The theoretical calculations are verified experimentally. The standard error of the determination of the thickness in the microscope is found experimentally to amount to ±0.16μ,. With a measured thickness of 5μ, the error is thus ±3.2 p.c.Definitions are given of the following terms: depth of focus, depth of field, vertical resolving power, depth of vision, and accuracy of f

ISSN:0368-3974    

DOI:10.1111/j.1365-2818.1954.tb02009.x

出版商:Blackwell Publishing Ltd    

年代:1954

数据来源: WILEY

摘要:

SYNOPSISA method of setting microtome knives, which eliminates personal skill, is described.

ISSN:0368-3974    

DOI:10.1111/j.1365-2818.1954.tb02010.x

出版商:Blackwell Publishing Ltd    

年代:1954

数据来源: WILEY

ISSN:0368-3974    

DOI:10.1111/j.1365-2818.1954.tb02011.x

出版商:Blackwell Publishing Ltd    

年代:1954

数据来源: WILEY

ISSN:0368-3974    

DOI:10.1111/j.1365-2818.1954.tb02012.x

出版商:Blackwell Publishing Ltd    

年代:1954

数据来源: WILEY

ISSN:0368-3974    

DOI:10.1111/j.1365-2818.1954.tb02004.x

出版商:Blackwell Publishing Ltd    

年代:1954

数据来源: WILEY